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Integer Points on A^4+7*B^4=C^4+7*D^4


[2026.05.21]A^4+7*B^4=C^4+7*D^4の整点


■Diophantine Equation
       A^4+n*B^4=C^4+n*D^4 ----------(1)
を満たす自明でない整数の組(A,B,C,D) (ただし 0 < A < C, 0 < D < Bかつgcd(A,B,C,D)=1)を探す。

以下では、Elkiesの論文(参考文献[1])の方法によって、(1)を満たす整数の組(A,B,C,D)を探す。

■(1)およびD!=0より、A/D=y,B/D=x.C/D=tとすると、
       y^4+n*x^4 = t^4+n ----------(2)
       y^4-t^4= y n(1-x^4)
       (y^2+t^2)*(x^2-t^2) = n*(1+x^2)*(1-x^2)
つまり、(2)を満たす有理数の組(x,y,t)を見つければ良い。

ここで、ある有理数u > 0に対して、
       y^2+t^2 = (n/u)*(1+x^2) ----------(2a)
       y^2-t^2 = u*(1-x^2) ----------(2b)
よって、
       2*u*y^2 = (n+u^2)*x^2+(n-u^2) ----------(3a)
       2*u*t^2 = (n-u^2)*x^2+(n+u^2) ----------(3b)
を満たす有理数の組(x,y,t)が存在すれば、(x,y,t)が(2)を満たすことが分かる。

[pari/gpによる計算]
gp > YY2(n,u,x)
%1 = (1/(2*u)*n - 1/2*u)*x^2 + (1/(2*u)*n + 1/2*u)
gp > TT2(n,u,x)
%2 = (1/(2*u)*n + 1/2*u)*x^2 + (1/(2*u)*n - 1/2*u)
gp > YY2(n,u,x)^2+n*x^4-TT2(n,u,x)^2-n
%3 = 0

■2次曲線(3a),(3b)は、n=u^2のときはsoncularであり、それ以外のときはnon-singularである。
2次曲線(3a)の右辺の判別式は
    -4*(n+u^2)*(n-u^2)
となる。ここで、nが平方数でなければ、任意の有理数uについて、判別式は0にならないので、2次曲線(3a)は常にnon-singularである。
nが平方数であるならば、n=u^2のときに限り、2次曲線(3a)はsingularであり。それ以外のuにつては、non-singularである。

同様に、2次曲線(3b)の右辺の判別式は
    -4*(n-u^2)*(n+u^2)
となる。nが平方数でなければ、任意の有理数uについて、判別式は0にならないので、2次曲線(3b)は常にnon-singularである。
nが平方数であるならば、n=u^2のときに限り、2次曲線(3b)はsingularであり。それ以外のuにつては、non-singularである。

■以下では、n=7とする。

■有理数uの高さが小さいものから、順に調べる。
例えば、有理数uの高さが100以下の範囲で、2つの2次曲線(3a)と(3b)が共に有理点を持つようなuを選択すると、 以下のように556個のuが抽出される。
[MAGMAによる計算]
> PP(7,1,100);
**u= 1 , ht= 1 ; ( 0 , 2 ), ( 1/2 , -2 )
**u= 1/4 , ht= 5 ; ( 15 , 56 ), ( 1/5 , 19/5 )
**u= 1/7 , ht= 1 ; ( -20/13 , 118/13 ), ( -1 , 7 )
**u= 1/15 , ht= 49 ; ( -49 , -355 ), ( -71/86 , 404/43 )
**u= 1/20 , ht= 39 ; ( 19/39 , 121/13 ), ( -39/19 , -363/19 )
**u= 1/28 , ht= 3923 ; ( 11765/10967 , -159221/10967 ), ( 3923/3657 , 53093/3657 )
**u= 1/33 , ht= 10 ; ( -10 , -108 ), ( 1/10 , -54/5 )
**u= 1/39 , ht= 539 ; ( -1100/109 , 12914/109 ), ( -397/539 , -711/49 )
**u= 1/40 , ht= 106 ; ( 107/637 , 7643/637 ), ( -29/106 , -5201/424 )
**u= 1/47 , ht= 619 ; ( 1262/87 , -5408/29 ), ( -321/619 , 8943/619 )
**u= 1/48 , ht= 635 ; ( -635/907 , -14351/907 ), ( 389/635 , 76/5 )
**u= 1/55 , ht= 83 ; ( -888/1097 , 19582/1097 ), ( 83/27 , 1211/27 )
**u= 1/63 , ht= 1 ; ( -50/69 , -3796/207 ), ( -1 , -21 )
**u= 1/64 , ht= 79 ; ( -5/79 , -4739/316 ), ( -13/239 , 14329/956 )
**u= 1/76 , ht= 251 ; ( 2053/571 , 34754/571 ), ( -251/53 , 4184/53 )
**u= 1/81 , ht= 140 ; ( -58/141 , -23104/1269 ), ( -59/140 , 1279/70 )
**u= 1/84 , ht= 173 ; ( 319/67 , 5589/67 ), ( -173/79 , 3261/79 )
**u= 1/92 , ht= 845 ; ( 845/477 , -5804/159 ), ( 1779/169 , 32067/169 )
**u= 1/97 , ht= 306 ; ( 306/179 , -6532/179 ), ( -179/306 , 3266/153 )
**u= 1/100 , ht= 307 ; ( -309/209 , -6979/209 ), ( -307/211 , 34846/1055 )
**u= 4/3 , ht= 11 ; ( -17/13 , 67/26 ), ( -1/11 , 31/22 )
**u= 4/7 , ht= 1 ; ( -1 , 7/2 ), ( -1 , -7/2 )
**u= 4/19 , ht= 33 ; ( 1333/801 , 1407/178 ), ( -33/5 , -273/10 )
**u= 4/27 , ht= 7 ; ( -5/7 , -251/42 ), ( 3827/3065 , -143039/18390 )
**u= 4/39 , ht= 659 ; ( -1067/571 , 14133/1142 ), ( -659/355 , 8749/710 )
**u= 4/51 , ht= 203 ; ( -8875/3161 , 125827/6322 ), ( -1/203 , 2711/406 )
**u= 4/55 , ht= 171 ; ( -37/403 , 5617/806 ), ( 171/149 , -3147/298 )
**u= 4/63 , ht= 1 ; ( -1 , 21/2 ), ( -1 , -21/2 )
**u= 4/67 , ht= 457 ; ( 457/323 , 451/34 ), ( 1691/2495 , 46151/4990 )
**u= 4/71 , ht= 5283 ; ( 8545/4143 , 49893/2762 ), ( 5283/1165 , 85299/2330 )
**u= 4/87 , ht= 755 ; ( -48061/3269 , 840473/6538 ), ( -637/755 , -17237/1510 )
**u= 4/99 , ht= 3683 ; ( 41795/58031 , -1331269/116062 ), ( 3683/119 , 68601/238 )
**u= 5 , ht= 4 ; ( 4/3 , 0 ), ( 3/4 , 0 )
**u= 5/2 , ht= 3 ; ( 3 , 2 ), ( -1/3 , -2/3 )
**u= 5/6 , ht= 37 ; ( 199/163 , -522/163 ), ( 1/37 , 72/37 )
**u= 5/17 , ht= 113 ; ( -1216/127 , -4192/127 ), ( -113/96 , 16/3 )
**u= 5/18 , ht= 13 ; ( 4/13 , -97/26 ), ( 63/61 , 934/183 )
**u= 5/26 , ht= 227 ; ( -46/227 , 1981/454 ), ( -1779/2 , 15219/4 )
**u= 5/38 , ht= 1249 ; ( 147/1249 , 6494/1249 ), ( -2201/6083 , 33332/6083 )
**u= 5/42 , ht= 113 ; ( -1138/59 , -12345/118 ), ( 29/113 , -632/113 )
**u= 5/47 , ht= 817 ; ( -968/169 , 5632/169 ), ( 817/264 , -56/3 )
**u= 5/57 , ht= 26 ; ( 26/7 , -170/7 ), ( 1807/74 , -5715/37 )
**u= 5/62 , ht= 916 ; ( -13077/584 , -172391/1168 ), ( -916/203 , -12367/406 )
**u= 5/63 , ht= 142 ; ( 36/463 , 9256/1389 ), ( -61/142 , -513/71 )
**u= 5/66 , ht= 59 ; ( -1783/16829 , -115074/16829 ), ( -59/7 , -404/7 )
**u= 5/74 , ht= 113 ; ( -109/113 , 10 ), ( -113/594 , -791/108 )
**u= 5/78 , ht= 2627 ; ( 7643/4601 , -65910/4601 ), ( -1039/2627 , -20870/2627 )
**u= 5/82 , ht= 6017 ; ( 6017/51 , -15192/17 ), ( -24399/20947 , 243642/20947 )
**u= 5/86 , ht= 469 ; ( -613/634 , -13685/1268 ), ( -469/47 , -3658/47 )
**u= 5/89 , ht= 866 ; ( -866/243 , 2366/81 ), ( -6939/3118 , 30027/1559 )
**u= 7 , ht= 1 ; ( 0 , 2 ), ( -1 , 1 )
**u= 7/3 , ht= 2 ; ( -10 , 6 ), ( -1/2 , 1 )
**u= 7/4 , ht= 1 ; ( -7/3 , 3 ), ( 1 , 2 )
**u= 7/5 , ht= 3 ; ( 2/3 , 2 ), ( 3/8 , 3/2 )
**u= 7/6 , ht= 5 ; ( 25/13 , 46/13 ), ( -1/5 , -8/5 )
**u= 7/9 , ht= 7 ; ( -10/21 , 152/63 ), ( -7/2 , -8 )
**u= 7/10 , ht= 31 ; ( -31/19 , 80/19 ), ( 88/23 , -419/46 )
**u= 7/16 , ht= 197 ; ( -563/497 , -4241/994 ), ( -197/175 , -1493/350 )
**u= 7/23 , ht= 117 ; ( -20/141 , -162/47 ), ( -117/44 , 213/22 )
**u= 7/25 , ht= 1 ; ( -70/19 , -1276/95 ), ( 1 , 5 )
**u= 7/27 , ht= 19 ; ( -8/19 , -4 ), ( -19/8 , 19/2 )
**u= 7/32 , ht= 39 ; ( -59/3 , 157/2 ), ( -39/7 , -159/7 )
**u= 7/34 , ht= 165 ; ( 165/97 , 788/97 ), ( -838/675 , 8879/1350 )
**u= 7/36 , ht= 1 ; ( -1 , -6 ), ( -2751/2605 , -48229/7815 )
**u= 7/39 , ht= 37 ; ( -2/37 , 164/37 ), ( 37/2 , -82 )
**u= 7/60 , ht= 613 ; ( -613/287 , -3705/287 ), ( -1709/161 , 9411/161 )
**u= 7/64 , ht= 689 ; ( -689/161 , -7999/322 ), ( -4303/817 , 24796/817 )
**u= 7/66 , ht= 13 ; ( -13/2 , 151/4 ), ( -911/1795 , 11558/1795 )
**u= 7/69 , ht= 50 ; ( -688/347 , -4524/347 ), ( -19/50 , 157/25 )
**u= 7/75 , ht= 64 ; ( -128/53 , 16 ), ( 53/64 , 159/20 )
**u= 7/81 , ht= 21 ; ( -5/21 , 1237/189 ), ( 741/820 , -31649/3690 )
**u= 7/82 , ht= 166 ; ( -2089/43 , 13372/43 ), ( 166/43 , -2197/86 )
**u= 7/90 , ht= 11 ; ( 11/9 , -286/27 ), ( 1772/1837 , 3113/334 )
**u= 7/100 , ht= 6805 ; ( -20387/19985 , -1009343/99925 ), ( -6805/6671 , -336919/33355 )
**u= 8/3 , ht= 10 ; ( 10 , 3/4 ), ( 1/10 , 3/40 )
**u= 8/11 , ht= 6 ; ( 5/6 , 23/8 ), ( -6/5 , 69/20 )
**u= 8/15 , ht= 4 ; ( -1/4 , -43/16 ), ( -9199/2456 , 99267/9824 )
**u= 8/23 , ht= 47 ; ( 24/47 , -673/188 ), ( -121/52 , 1681/208 )
**u= 8/27 , ht= 149 ; ( -149/98 , 7337/1176 ), ( 166/43 , -7111/516 )
**u= 8/35 , ht= 206 ; ( 206/11 , -3217/44 ), ( -766/809 , 17435/3236 )
**u= 8/47 , ht= 24 ; ( -23/24 , 201/32 ), ( 13011/932 , -237087/3728 )
**u= 8/51 , ht= 209 ; ( -209/46 , 4037/184 ), ( 1418/3223 , -6041/1172 )
**u= 8/59 , ht= 369 ; ( 766/1651 , -37019/6604 ), ( 74/369 , -7639/1476 )
**u= 8/75 , ht= 169 ; ( 169/2 , -19347/40 ), ( -403/74 , -46977/1480 )
**u= 8/87 , ht= 2108 ; ( -10636/11897 , -393841/47588 ), ( -2108/995 , 57547/3980 )
**u= 8/99 , ht= 4567 ; ( -4567/702 , -364751/8424 ), ( -17694/5351 , -1460447/64212 )
**u= 9/4 , ht= 19 ; ( 227/61 , 538/183 ), ( 13/19 , 74/57 )
**u= 9/7 , ht= 1 ; ( -305/227 , 1817/681 ), ( 1 , -7/3 )
**u= 9/8 , ht= 1 ; ( 0 , 23/12 ), ( 183/23 , -46/3 )
**u= 9/16 , ht= 11 ; ( -7/11 , 197/66 ), ( -11/7 , -197/42 )
**u= 9/20 , ht= 99 ; ( -2943/707 , 24995/2121 ), ( 19/99 , -832/297 )
**u= 9/25 , ht= 2 ; ( -2 , 104/15 ), ( -1/2 , 52/15 )
**u= 9/28 , ht= 1 ; ( -1 , 14/3 ), ( -78751/77965 , -1097107/233895 )
**u= 9/41 , ht= 357 ; ( 176/357 , 4778/1071 ), ( 4199/960 , -25879/1440 )
**u= 9/44 , ht= 189 ; ( 189/13 , 2344/39 ), ( 239/723 , 9427/2169 )
**u= 9/64 , ht= 173 ; ( 191/127 , -3431/381 ), ( 173/145 , -13517/1740 )
**u= 9/71 , ht= 81 ; ( -133/9 , -2099/27 ), ( 81/10 , -644/15 )
**u= 9/73 , ht= 334 ; ( -334/31 , 5356/93 ), ( 3487/640 , -28363/960 )
**u= 9/79 , ht= 1081 ; ( -3376/3023 , 75346/9069 ), ( 1081/133 , -18127/399 )
**u= 9/88 , ht= 233 ; ( 233/97 , -4427/291 ), ( 859/1165 , -109/15 )
**u= 9/95 , ht= 348 ; ( 348/13 , -6346/39 ), ( -51/431 , 7909/1293 )
**u= 10/3 , ht= 2 ; ( 569/278 , -203/556 ), ( -1/2 , -1/4 )
**u= 10/7 , ht= 4 ; ( -4/3 , 5/2 ), ( 3/4 , -15/8 )
**u= 10/11 , ht= 74 ; ( -74/3 , -91/2 ), ( -1146/713 , 5433/1426 )
**u= 10/27 , ht= 77 ; ( 77/74 , 1969/444 ), ( -1469/3542 , 6385/1932 )
**u= 10/31 , ht= 47 ; ( 16/47 , -7/2 ), ( 6721/1668 , 45919/3336 )
**u= 10/43 , ht= 118 ; ( 11/118 , -923/236 ), ( -2578/729 , -20855/1458 )
**u= 10/51 , ht= 19 ; ( 19/2 , -161/4 ), ( 311/362 , -4031/724 )
**u= 10/79 , ht= 13163 ; ( -13163/4236 , -48429/2824 ), ( -382053/62024 , 4074939/124048 )
**u= 10/91 , ht= 6586 ; ( 206151/424642 , -5330801/849284 ), ( -6586/3333 , 83357/6666 )
**u= 10/99 , ht= 414 ; ( 414/337 , 18851/2022 ), ( -691/2 , -8141/4 )
**u= 13 , ht= 171 ; ( -94/171 , 42/19 ), ( -171/94 , -189/47 )
**u= 13/6 , ht= 5 ; ( -5 , -4 ), ( 1/5 , -4/5 )
**u= 13/7 , ht= 8 ; ( 176/113 , -256/113 ), ( 1/8 , -1 )
**u= 13/18 , ht= 61 ; ( 20/61 , 291/122 ), ( -61/20 , -291/40 )
**u= 13/22 , ht= 177 ; ( -1119/6053 , -15326/6053 ), ( -131/177 , -532/177 )
**u= 13/25 , ht= 60 ; ( -60/53 , 1036/265 ), ( -59/100 , 373/125 )
**u= 13/30 , ht= 19 ; ( 697/547 , -2510/547 ), ( -4/19 , -109/38 )
**u= 13/33 , ht= 223 ; ( -146/223 , -798/223 ), ( -223/146 , 399/73 )
**u= 13/34 , ht= 409 ; ( 256/409 , -2933/818 ), ( 1279/259 , 3986/259 )
**u= 13/62 , ht= 2151 ; ( 3443/1641 , -5184/547 ), ( -2151/1283 , -10248/1283 )
**u= 13/66 , ht= 140 ; ( 140/41 , 1227/82 ), ( -7753/365 , -32808/365 )
**u= 13/71 , ht= 3320 ; ( -3320/2289 , -5872/763 ), ( 6009/2104 , 3486/263 )
**u= 13/82 , ht= 92 ; ( -1589/687 , 2708/229 ), ( -31/92 , 911/184 )
**u= 13/97 , ht= 11677 ; ( -12414/5143 , 68606/5143 ), ( 11677/3746 , 31367/1873 )
**u= 13/98 , ht= 220 ; ( 220/21 , 5291/98 ), ( -2877/176 , -18867/224 )
**u= 14/5 , ht= 33 ; ( 33/8 , 5/16 ), ( 19/64 , 37/128 )
**u= 14/17 , ht= 27 ; ( -10/27 , -41/18 ), ( -81/106 , -543/212 )
**u= 14/33 , ht= 167 ; ( 167/2 , -947/4 ), ( 394/31 , -2299/62 )
**u= 14/41 , ht= 402 ; ( 1249/2602 , 18577/5204 ), ( -131/402 , 2689/804 )
**u= 14/45 , ht= 29 ; ( -521/404 , -4415/808 ), ( 29/16 , 223/32 )
**u= 14/69 , ht= 44 ; ( 2396/3707 , -36709/7414 ), ( -44/25 , 421/50 )
**u= 14/89 , ht= 206 ; ( 2785/1398 , 9789/932 ), ( 206/117 , -2237/234 )
**u= 16/7 , ht= 1 ; ( -1 , 7/4 ), ( -1 , -7/4 )
**u= 16/15 , ht= 49 ; ( 49 , -325/4 ), ( -43/107 , 785/428 )
**u= 16/19 , ht= 25 ; ( -25/13 , -223/52 ), ( 29/143 , -103/52 )
**u= 16/31 , ht= 481 ; ( 2729/247 , -28003/988 ), ( 481/15 , 5107/60 )
**u= 16/39 , ht= 293 ; ( 293/59 , 3453/236 ), ( 8717/1619 , 104741/6476 )
**u= 16/43 , ht= 395 ; ( -453/407 , 7463/1628 ), ( 137/395 , 5089/1580 )
**u= 16/63 , ht= 1 ; ( 1 , 21/4 ), ( 1 , 21/4 )
**u= 16/75 , ht= 1567 ; ( 2047/797 , 35505/3188 ), ( -1567/155 , -127967/3100 )
**u= 16/87 , ht= 847 ; ( -545/847 , 17593/3388 ), ( -847/545 , -17593/2180 )
**u= 16/99 , ht= 1453 ; ( 111/1453 , 81527/17436 ), ( -4657/315 , 261139/3780 )
**u= 17/2 , ht= 45 ; ( 53/111 , 72/37 ), ( -41/45 , -8/45 )
**u= 17/3 , ht= 16 ; ( 16/13 , 4/13 ), ( 181/112 , 73/28 )
**u= 17/6 , ht= 4 ; ( -1/4 , -13/8 ), ( 244/469 , -687/938 )
**u= 17/14 , ht= 19 ; ( 9/19 , 2 ), ( 19/9 , 38/9 )
**u= 17/18 , ht= 247 ; ( -247/189 , 1766/567 ), ( -507/226 , -6679/1356 )
**u= 17/21 , ht= 26 ; ( 86/149 , 366/149 ), ( 19/26 , -33/13 )
**u= 17/26 , ht= 64 ; ( -64 , 287/2 ), ( 1187/420 , 5963/840 )
**u= 17/29 , ht= 380 ; ( -648/77 , -1556/77 ), ( -177/380 , 252/95 )
**u= 17/35 , ht= 3097 ; ( 318/3097 , 8494/3097 ), ( 7489/3436 , 5590/859 )
**u= 17/42 , ht= 61 ; ( 40/61 , -431/122 ), ( 311/388 , -2917/776 )
**u= 17/50 , ht= 479 ; ( -5518/193 , 35137/386 ), ( 479/362 , 19307/3620 )
**u= 17/54 , ht= 4 ; ( -11789/1256 , 235537/7536 ), ( 4 , -83/6 )
**u= 17/62 , ht= 487 ; ( -381/487 , -2212/487 ), ( 6526/977 , 47393/1954 )
**u= 17/66 , ht= 113 ; ( -58/113 , 939/226 ), ( 7307/1202 , 54839/2404 )
**u= 17/70 , ht= 24 ; ( 11/24 , -67/16 ), ( -256152/109957 , 2122599/219914 )
**u= 17/78 , ht= 473 ; ( 3013/2194 , 29841/4388 ), ( 473/5 , -1902/5 )
**u= 17/83 , ht= 16852 ; ( 16852/3981 , 23796/1327 ), ( -183/17696 , 9117/2212 )
**u= 17/99 , ht= 10660 ; ( 10660/1101 , 144848/3303 ), ( 23921/3340 , -27316/835 )
**u= 25/7 , ht= 29 ; ( 22/29 , 44/29 ), ( 19/33 , 1/3 )
**u= 25/9 , ht= 4 ; ( 68/15 , -2/225 ), ( -3/4 , -7/6 )
**u= 25/16 , ht= 103 ; ( 45/103 , 1871/1030 ), ( -103/45 , -1871/450 )
**u= 25/23 , ht= 14 ; ( -14/9 , -16/5 ), ( -9/37 , 63/37 )
**u= 25/24 , ht= 166 ; ( 277/211 , -625/211 ), ( 166/13 , 1311/52 )
**u= 25/28 , ht= 1 ; ( -1 , -14/5 ), ( -1 , 14/5 )
**u= 25/31 , ht= 24 ; ( 37/25 , -457/125 ), ( 7/24 , 25/12 )
**u= 25/32 , ht= 33 ; ( 32/33 , 1299/440 ), ( -33/32 , -3897/1280 )
**u= 25/36 , ht= 137 ; ( -137/25 , 1512/125 ), ( -75/137 , -5161/2055 )
**u= 25/39 , ht= 103 ; ( -103/79 , 301/79 ), ( 79/103 , 301/103 )
**u= 25/41 , ht= 146 ; ( -500/2919 , 12118/4865 ), ( 105/146 , 1068/365 )
**u= 25/52 , ht= 133 ; ( -23/133 , 1849/665 ), ( -133/23 , -1849/115 )
**u= 25/57 , ht= 379 ; ( 526/101 , -7468/505 ), ( -379/56 , -2741/140 )
**u= 25/63 , ht= 139 ; ( 304/3 , -2678/9 ), ( 139/104 , -1293/260 )
**u= 25/64 , ht= 71 ; ( -213/65 , -13211/1300 ), ( 55/71 , 2681/710 )
**u= 25/68 , ht= 863 ; ( -863/591 , -1072/197 ), ( -18471/569 , 287826/2845 )
**u= 25/73 , ht= 661 ; ( 4/661 , -10654/3305 ), ( -4009/6 , 32308/15 )
**u= 25/76 , ht= 429 ; ( 103/429 , -483/143 ), ( -8851/605 , 145796/3025 )
**u= 25/84 , ht= 1103 ; ( -955/1103 , 25039/5515 ), ( -1103/955 , -25039/4775 )
**u= 25/96 , ht= 335 ; ( 667/835 , 39221/8350 ), ( 23/335 , 12251/3350 )
**u= 26/3 , ht= 31 ; ( -14/31 , 123/62 ), ( -61/46 , -193/92 )
**u= 26/7 , ht= 12 ; ( 5/12 , -13/8 ), ( 2544/305 , -8493/610 )
**u= 26/11 , ht= 17 ; ( 17/6 , -9/4 ), ( 6/17 , -27/34 )
**u= 26/15 , ht= 479 ; ( -479/244 , -1321/488 ), ( 919/604 , 3381/1208 )
**u= 26/35 , ht= 209 ; ( -174/209 , -1189/418 ), ( -28829/5394 , 4549/372 )
**u= 26/43 , ht= 1851 ; ( -3187/822 , -5157/548 ), ( 1851/170 , 9171/340 )
**u= 26/63 , ht= 27 ; ( -27/8 , 487/48 ), ( 7289/3516 , -142471/21096 )
**u= 26/75 , ht= 110 ; ( 110/43 , 3729/430 ), ( 43/110 , 339/100 )
**u= 26/83 , ht= 20049 ; ( -24590/5373 , 18577/1194 ), ( -20049/3274 , -136707/6548 )
**u= 26/95 , ht= 4948 ; ( -4948/467 , -35359/934 ), ( -16184/3671 , 119263/7342 )
**u= 28 , ht= 225 ; ( -225/223 , 1/446 ), ( -223/225 , -1/450 )
**u= 28/9 , ht= 1 ; ( -1 , 3/2 ), ( -423/385 , -3869/2310 )
**u= 28/25 , ht= 1 ; ( -45/11 , -751/110 ), ( -1 , -5/2 )
**u= 28/29 , ht= 81 ; ( -35/81 , -13/6 ), ( -27/433 , 1539/866 )
**u= 28/37 , ht= 197 ; ( 197/49 , 841/98 ), ( 1429/615 , 6877/1230 )
**u= 28/57 , ht= 1939 ; ( 2053/229 , -10841/458 ), ( 1483/1939 , 12973/3878 )
**u= 28/65 , ht= 251 ; ( 7/657 , -1265/438 ), ( 69/251 , -1467/502 )
**u= 28/81 , ht= 1 ; ( -12575/12897 , 1031921/232146 ), ( -1 , -9/2 )
**u= 28/93 , ht= 2249 ; ( -8909/3367 , -64629/6734 ), ( -2249/1843 , 19853/3686 )
**u= 29/3 , ht= 83 ; ( -10/83 , 188/83 ), ( -871/766 , 574/383 )
**u= 29/4 , ht= 27 ; ( -5/27 , 2 ), ( -27/5 , 54/5 )
**u= 29/8 , ht= 99 ; ( 99/59 , -37/59 ), ( 229/94 , -1487/376 )
**u= 29/11 , ht= 12 ; ( 647/79 , 143/79 ), ( -1/12 , 1/6 )
**u= 29/12 , ht= 43 ; ( 43/23 , -43/23 ), ( -2099/2365 , 84/55 )
**u= 29/20 , ht= 7 ; ( -3/7 , 13/7 ), ( -4457/3053 , 8837/3053 )
**u= 29/27 , ht= 16 ; ( -16/11 , 34/11 ), ( -11/16 , -17/8 )
**u= 29/32 , ht= 155 ; ( 155/141 , 273/94 ), ( 67/195 , 386/195 )
**u= 29/40 , ht= 1697 ; ( 1697/777 , -1333/259 ), ( -3837/907 , 8949/907 )
**u= 29/45 , ht= 1294 ; ( 1294/1289 , -4256/1289 ), ( 1263/4622 , 16316/6933 )
**u= 29/51 , ht= 397 ; ( 1910/3751 , 10584/3751 ), ( -397/385 , 1373/385 )
**u= 29/60 , ht= 253 ; ( 253/67 , 694/67 ), ( 26507/6977 , -74823/6977 )
**u= 29/72 , ht= 67 ; ( 2527/97 , -7368/97 ), ( -67/50 , 989/200 )
**u= 29/75 , ht= 103 ; ( -47/103 , 343/103 ), ( 1303/53 , 3965/53 )
**u= 29/80 , ht= 547 ; ( -193/547 , 3631/1094 ), ( 90371/27901 , 296156/27901 )
**u= 29/92 , ht= 3419 ; ( 175/53029 , -177953/53029 ), ( -3419/399 , 11549/399 )
**u= 29/93 , ht= 1199 ; ( 41816/121 , -139118/121 ), ( -1199/1106 , -2734/553 )
**u= 29/96 , ht= 1016 ; ( 941/1352 , 44957/10816 ), ( -1016/505 , 31017/4040 )
**u= 29/99 , ht= 6905 ; ( -6905/1559 , 24333/1559 ), ( 7059/3017 , -79943/9051 )
**u= 32/3 , ht= 62 ; ( 59/62 , -17/16 ), ( -62/55 , 651/440 )
**u= 32/11 , ht= 145 ; ( -145/86 , 959/688 ), ( 283/470 , -3173/3760 )
**u= 32/15 , ht= 4 ; ( 284/79 , -2011/632 ), ( 4 , -53/8 )
**u= 32/19 , ht= 25 ; ( 25/6 , -79/16 ), ( -753/278 , -10587/2224 )
**u= 32/27 , ht= 50 ; ( 470/203 , 19609/4872 ), ( -37/50 , -2489/1200 )
**u= 32/47 , ht= 928 ; ( -39464/16513 , 757699/132104 ), ( -59/928 , 16303/7424 )
**u= 32/51 , ht= 145 ; ( -1030/857 , 25187/6856 ), ( 26/145 , 2709/1160 )
**u= 32/59 , ht= 5831 ; ( -3314/5831 , 137759/46648 ), ( -54182/13845 , 1157251/110760 )
**u= 32/63 , ht= 267 ; ( -3240/463 , -202513/11112 ), ( -76/267 , -17213/6408 )
**u= 32/71 , ht= 243 ; ( -112/243 , -223/72 ), ( 324/821 , 19467/6568 )
**u= 32/91 , ht= 145 ; ( -39017/13698 , 115161/12176 ), ( 54/145 , -3879/1160 )
**u= 32/95 , ht= 408 ; ( 408/47 , 10507/376 ), ( 452/357 , -14881/2856 )
**u= 34/3 , ht= 4 ; ( 140/137 , 169/274 ), ( -4 , -19/2 )
**u= 34/7 , ht= 131 ; ( 758/793 , 1999/1586 ), ( 131/54 , 443/108 )
**u= 34/15 , ht= 1741 ; ( -1741/334 , -2485/668 ), ( -3722/8003 , 15925/16006 )
**u= 34/23 , ht= 12370 ; ( -12370/2373 , -10887/1582 ), ( 23373/2558 , 82653/5116 )
**u= 34/31 , ht= 194 ; ( 194/23 , -637/46 ), ( 1049/1958 , 7549/3916 )
**u= 34/59 , ht= 16837 ; ( -16837/96 , 26999/64 ), ( -135141/7580 , 682689/15160 )
**u= 34/67 , ht= 771 ; ( -704/771 , -1831/514 ), ( 23304/26209 , -183813/52418 )
**u= 34/75 , ht= 200 ; ( -67/200 , -5929/2000 ), ( 148/275 , 8607/2750 )
**u= 34/79 , ht= 3942 ; ( 3942/229 , -22223/458 ), ( 4543/5254 , -39539/10508 )
**u= 34/87 , ht= 82 ; ( 5/82 , 497/164 ), ( 58853/12482 , 363659/24964 )
**u= 34/91 , ht= 5048 ; ( -24491/9088 , -158693/18176 ), ( 5048/3319 , -37127/6638 )
**u= 34/99 , ht= 2459 ; ( -1248/2459 , 53081/14754 ), ( 3584/97 , -23083/194 )
**u= 35/6 , ht= 19 ; ( 7/19 , 34/19 ), ( -23/14 , -75/28 )
**u= 35/8 , ht= 2 ; ( 1/2 , -13/8 ), ( -179/117 , 277/117 )
**u= 35/16 , ht= 27 ; ( -11/27 , -5/3 ), ( 27/11 , 45/11 )
**u= 35/29 , ht= 118 ; ( 118/31 , 188/31 ), ( 31/118 , 94/59 )
**u= 35/34 , ht= 77 ; ( 143/24 , -165/16 ), ( -9/77 , 12/7 )
**u= 35/36 , ht= 3 ; ( 3 , -17/3 ), ( -89/487 , 878/487 )
**u= 35/38 , ht= 21 ; ( 206/3 , 251/2 ), ( 21/2 , -87/4 )
**u= 35/44 , ht= 261 ; ( -261/223 , 715/223 ), ( 599/247 , 1402/247 )
**u= 35/47 , ht= 434 ; ( -434/83 , 922/83 ), ( -431/462 , -683/231 )
**u= 35/51 , ht= 47 ; ( 4/47 , 110/47 ), ( -4687/2266 , 6000/1133 )
**u= 35/53 , ht= 331 ; ( 172/331 , -874/331 ), ( -3989/332 , -4747/166 )
**u= 35/62 , ht= 233 ; ( -516/383 , 3179/766 ), ( 233/16 , -1189/32 )
**u= 35/66 , ht= 256 ; ( 11377/784 , -57417/1568 ), ( 256/157 , -1557/314 )
**u= 35/87 , ht= 217 ; ( 44/217 , 660/217 ), ( -217/44 , 15 )
**u= 35/88 , ht= 2349 ; ( 632/2349 , -335/108 ), ( -2349/688 , 29319/2752 )
**u= 35/89 , ht= 367 ; ( -256/367 , -1340/367 ), ( -787/14 , 1187/7 )
**u= 35/92 , ht= 1147 ; ( 1147/411 , -1222/137 ), ( 6819/563 , 20964/563 )
**u= 35/93 , ht= 199 ; ( -199/173 , 803/173 ), ( 439/3818 , -5802/1909 )
**u= 36/7 , ht= 13537 ; ( -13537/13343 , 91481/80058 ), ( -22751/22945 , 157351/137670 )
**u= 36/11 , ht= 45 ; ( 45/23 , -101/138 ), ( 4219/567 , -41561/3402 )
**u= 36/19 , ht= 299 ; ( -6385/37 , -36343/222 ), ( -233/299 , 2891/1794 )
**u= 36/23 , ht= 2391 ; ( -5649/1849 , 45181/11094 ), ( -2391/2071 , 29081/12426 )
**u= 36/31 , ht= 569 ; ( 383/569 , -7399/3414 ), ( 6593/1385 , -76111/8310 )
**u= 36/35 , ht= 1733 ; ( 1733/1383 , 24125/8298 ), ( -5477/1593 , 67037/9558 )
**u= 36/47 , ht= 1729 ; ( 4055/1047 , 51707/6282 ), ( 1729/225 , -23251/1350 )
**u= 36/79 , ht= 1145 ; ( -1145/593 , 21257/3558 ), ( -11993/1279 , -203441/7674 )
**u= 36/91 , ht= 341 ; ( -341/257 , -7597/1542 ), ( 2677/1585 , 55819/9510 )
**u= 36/95 , ht= 119 ; ( 119/81 , -2615/486 ), ( -39783/10567 , 757235/63402 )
**u= 37/3 , ht= 7 ; ( -5/7 , -13/7 ), ( 7/5 , 13/5 )
**u= 37/4 , ht= 233 ; ( 103/233 , -476/233 ), ( -439/451 , -317/451 )
**u= 37/11 , ht= 213 ; ( -202/213 , -104/71 ), ( -681/835 , -903/835 )
**u= 37/12 , ht= 7 ; ( -5/7 , 11/7 ), ( 10051/5443 , -16074/5443 )
**u= 37/19 , ht= 373 ; ( -240/373 , -658/373 ), ( -2387/3888 , -2657/1944 )
**u= 37/21 , ht= 404 ; ( 404/19 , 426/19 ), ( 19/404 , 213/202 )
**u= 37/24 , ht= 31 ; ( -71/56 , 523/224 ), ( 1/31 , 38/31 )
**u= 37/27 , ht= 2510 ; ( 2510/2443 , 16732/7329 ), ( 7631/5977 , -15981/5977 )
**u= 37/28 , ht= 613 ; ( -613/311 , 1033/311 ), ( -328471/39463 , 600128/39463 )
**u= 37/36 , ht= 229 ; ( 229/69 , 1238/207 ), ( -2019/1421 , 14012/4263 )
**u= 37/40 , ht= 3143 ; ( -1492/3143 , 28097/12572 ), ( -31447/2868 , -260047/11472 )
**u= 37/43 , ht= 273 ; ( 273/101 , -563/101 ), ( 923/321 , -2051/321 )
**u= 37/48 , ht= 347 ; ( 1637/649 , -7269/1298 ), ( -101/347 , -742/347 )
**u= 37/51 , ht= 464 ; ( 1432/1747 , 4998/1747 ), ( 379/464 , -653/232 )
**u= 37/52 , ht= 137 ; ( -45/137 , 329/137 ), ( -1919/2657 , -7186/2657 )
**u= 37/56 , ht= 39 ; ( 25/39 , 36/13 ), ( -39/25 , -108/25 )
**u= 37/60 , ht= 35371 ; ( -49063/34663 , 141810/34663 ), ( -15509/35371 , 554/217 )
**u= 37/67 , ht= 1572 ; ( -1572/299 , 3946/299 ), ( 1609/3148 , 4393/1574 )
**u= 37/69 , ht= 377 ; ( 32/377 , -34/13 ), ( 5017/3568 , -7917/1784 )
**u= 37/72 , ht= 198 ; ( 198/181 , 8387/2172 ), ( -181/198 , -8387/2376 )
**u= 37/76 , ht= 58747 ; ( 214295/125299 , -660043/125299 ), ( -58747/6347 , 161032/6347 )
**u= 37/88 , ht= 271 ; ( 15029/597 , -14282/199 ), ( -183/271 , -939/271 )
**u= 37/91 , ht= 1081 ; ( 514/7339 , 21836/7339 ), ( -1081/11 , -3209/11 )
**u= 37/92 , ht= 1167 ; ( -305/1167 , 1198/389 ), ( 1707/511 , -5307/511 )
**u= 37/99 , ht= 153 ; ( 153/67 , -1523/201 ), ( 67/153 , -1523/459 )
**u= 41/2 , ht= 157 ; ( 145/157 , 212/157 ), ( -263/93 , 796/93 )
**u= 41/6 , ht= 131 ; ( 131/113 , -18/113 ), ( -1069/137 , 2106/137 )
**u= 41/10 , ht= 472 ; ( -472/303 , 5/202 ), ( -1383/2108 , 975/4216 )
**u= 41/11 , ht= 73 ; ( -200/119 , -52/119 ), ( 73/40 , -29/10 )
**u= 41/21 , ht= 64 ; ( -640/389 , -868/389 ), ( 43/64 , 23/16 )
**u= 41/26 , ht= 2156 ; ( -2156/1077 , -2123/718 ), ( 1077/2156 , -579/392 )
**u= 41/27 , ht= 232 ; ( 200/373 , 2096/1119 ), ( 167/232 , 154/87 )
**u= 41/37 , ht= 12368 ; ( -106256/142701 , -108016/47567 ), ( -8853/12368 , -1641/773 )
**u= 41/38 , ht= 53 ; ( 20651/61904 , -4721/2336 ), ( 53/15 , 106/15 )
**u= 41/42 , ht= 113 ; ( 8/113 , 457/226 ), ( -991/101 , 2008/101 )
**u= 41/45 , ht= 1346 ; ( -12166/1329 , -67666/3987 ), ( -391/1346 , 1303/673 )
**u= 41/46 , ht= 20727 ; ( 402695/32901 , -251496/10967 ), ( -20727/4435 , -44124/4435 )
**u= 41/50 , ht= 395 ; ( -395/217 , 4534/1085 ), ( 217/395 , -4534/1975 )
**u= 41/54 , ht= 379 ; ( -377/379 , 1148/379 ), ( -908/151 , 12311/906 )
**u= 41/66 , ht= 653 ; ( 191/653 , 1652/653 ), ( 11801/757 , -28826/757 )
**u= 41/69 , ht= 404 ; ( -1700/991 , 4716/991 ), ( -13/404 , -239/101 )
**u= 41/77 , ht= 1314 ; ( 5562/11477 , 33106/11477 ), ( -1171/1314 , 2251/657 )
**u= 41/78 , ht= 155 ; ( 2567/3997 , 12358/3997 ), ( -1/155 , -392/155 )
**u= 41/86 , ht= 3133 ; ( 1241/3133 , -9238/3133 ), ( -6157/105471 , 281608/105471 )
**u= 41/90 , ht= 501 ; ( 501/409 , 5362/1227 ), ( 1577/1032 , 31529/6192 )
**u= 41/98 , ht= 1035 ; ( 1035/49 , -20716/343 ), ( -317/1042 , -43643/14588 )
**u= 45 , ht= 21 ; ( 18/49 , 650/147 ), ( 21/2 , 149/3 )
**u= 45/2 , ht= 217 ; ( 181/217 , 1250/651 ), ( 661/152 , 13045/912 )
**u= 45/14 , ht= 41 ; ( 13/41 , 200/123 ), ( -44/47 , -383/282 )
**u= 45/22 , ht= 9 ; ( 9/2 , 49/12 ), ( -42/101 , -653/606 )
**u= 45/23 , ht= 53 ; ( -16/53 , -268/159 ), ( -53/16 , 67/12 )
**u= 45/74 , ht= 1043 ; ( -6119/2317 , -46150/6951 ), ( -1043/289 , -7964/867 )
**u= 45/89 , ht= 1928 ; ( 2552/149 , 19808/447 ), ( 1661/1928 , 2504/723 )
**u= 45/94 , ht= 44 ; ( 24787/319524 , 5282777/1917144 ), ( -44/3 , 727/18 )
**u= 45/98 , ht= 637 ; ( 3587/839 , 210676/17619 ), ( -637/271 , 40552/5691 )
**u= 53/3 , ht= 232 ; ( 115/419 , 1213/419 ), ( -229/232 , -47/116 )
**u= 53/5 , ht= 1451 ; ( 1966/3401 , -6776/3401 ), ( -1451/36 , -1721/18 )
**u= 53/8 , ht= 187 ; ( -290/257 , 559/1028 ), ( -187/114 , 1253/456 )
**u= 53/11 , ht= 365 ; ( -42/383 , 676/383 ), ( 339/365 , -369/365 )
**u= 53/20 , ht= 157 ; ( 197/27 , 14/9 ), ( -7/157 , 5/157 )
**u= 53/21 , ht= 89 ; ( -22082/437 , -7836/437 ), ( -89/86 , 74/43 )
**u= 53/24 , ht= 52 ; ( -23/52 , -347/208 ), ( 896/2129 , -8331/8516 )
**u= 53/27 , ht= 77 ; ( 3154/197 , 8528/591 ), ( 77/31 , 131/31 )
**u= 53/32 , ht= 19 ; ( 119/337 , -1187/674 ), ( 13/19 , 31/19 )
**u= 53/35 , ht= 31 ; ( 24/31 , -2 ), ( -31/24 , -31/12 )
**u= 53/36 , ht= 769 ; ( 545/769 , -1526/769 ), ( -853/327 , -43/9 )
**u= 53/43 , ht= 167 ; ( 167/81 , 97/27 ), ( -2883/3610 , 3798/1805 )
**u= 53/44 , ht= 1481 ; ( 1415/1481 , -3508/1481 ), ( -18769/2175 , 35308/2175 )
**u= 53/52 , ht= 257 ; ( 257/81 , 52/9 ), ( 24201/58105 , 110376/58105 )
**u= 53/69 , ht= 22394 ; ( -59684/208841 , 479946/208841 ), ( 61/22394 , -22872/11197 )
**u= 53/72 , ht= 5997 ; ( -8690/4989 , -257027/59868 ), ( 5997/5381 , 52927/16143 )
**u= 53/75 , ht= 473 ; ( -674/133 , -7388/665 ), ( -473/173 , -1151/173 )
**u= 53/80 , ht= 35483 ; ( -589691/24149 , -1313461/24149 ), ( -35483/14537 , 180167/29074 )
**u= 53/83 , ht= 27660 ; ( 27660/9773 , -2314/337 ), ( -575969/19620 , -693941/9810 )
**u= 53/84 , ht= 797 ; ( -113/797 , 1947/797 ), ( -5597/2803 , -14992/2803 )
**u= 53/92 , ht= 1209 ; ( 565/1209 , -1113/403 ), ( 303/1775 , -4338/1775 )
**u= 53/96 , ht= 3143 ; ( 3455/671 , 8681/671 ), ( -3143/1375 , 17529/2750 )
**u= 56/9 , ht= 1 ; ( 0 , 23/12 ), ( -8 , 61/4 )
**u= 56/29 , ht= 98 ; ( 69/98 , -701/392 ), ( -113/90 , 823/360 )
**u= 56/53 , ht= 334 ; ( -798/103 , 5387/412 ), ( 334/175 , 2867/700 )
**u= 56/57 , ht= 161 ; ( -865/332 , -6627/1328 ), ( -124/161 , -1507/644 )
**u= 56/65 , ht= 49 ; ( 1984/749 , 16403/2996 ), ( -49/16 , 433/64 )
**u= 61/7 , ht= 73 ; ( -136/151 , -188/151 ), ( 73/10 , -79/5 )
**u= 61/9 , ht= 99 ; ( -52/99 , 524/297 ), ( -359/260 , 139/65 )
**u= 61/14 , ht= 151 ; ( -643/729 , -112/81 ), ( -108/151 , 117/302 )
**u= 61/18 , ht= 929 ; ( -172/2197 , 7251/4394 ), ( 929/29 , 1534/29 )
**u= 61/22 , ht= 745 ; ( 1829/1026 , -1027/684 ), ( 162/745 , 51/1490 )
**u= 61/25 , ht= 148 ; ( -148/19 , 376/95 ), ( -77/556 , 358/695 )
**u= 61/34 , ht= 1704 ; ( -1704/1237 , -5447/2474 ), ( 9229/168 , 31151/336 )
**u= 61/39 , ht= 1451 ; ( 1804/263 , 2224/263 ), ( 1451/772 , -672/193 )
**u= 61/42 , ht= 3259 ; ( 1201/3259 , -5978/3259 ), ( -80333/107743 , -199456/107743 )
**u= 61/49 , ht= 243 ; ( -302/89 , 3334/623 ), ( -243/194 , 267/97 )
**u= 61/50 , ht= 1931 ; ( -2329/1221 , -1392/407 ), ( 231/1931 , 2934/1931 )
**u= 61/54 , ht= 415 ; ( -415/1637 , -3202/1637 ), ( -254/415 , -4921/2490 )
**u= 61/66 , ht= 6857 ; ( -10859/3793 , -21288/3793 ), ( 6857/1555 , 14416/1555 )
**u= 61/70 , ht= 1629 ; ( 1629/1174 , 7909/2348 ), ( 224573/19473 , -475280/19473 )
**u= 61/78 , ht= 2021 ; ( 1735/2021 , 5672/2021 ), ( 847/3005 , -6354/3005 )
**u= 61/82 , ht= 14815 ; ( 14815/1613 , -31052/1613 ), ( -20953/13323 , 54754/13323 )
**u= 61/87 , ht= 13259 ; ( 1044164/473551 , -2501652/473551 ), ( 13259/8416 , -4451/1052 )
**u= 61/94 , ht= 1353 ; ( 70823/22836 , 112363/15224 ), ( -1353/245 , -3282/245 )
**u= 63 , ht= 1 ; ( -1 , -1/3 ), ( -1 , 1/3 )
**u= 63/4 , ht= 169 ; ( 41/169 , 1402/507 ), ( 193/115 , -1343/345 )
**u= 63/8 , ht= 11 ; ( -15/49 , -296/147 ), ( -11/3 , -67/9 )
**u= 63/13 , ht= 20 ; ( 20/19 , -64/57 ), ( 19/20 , -16/15 )
**u= 63/16 , ht= 623 ; ( -557/623 , -5279/3738 ), ( -1711/1645 , -13999/9870 )
**u= 63/25 , ht= 20 ; ( -20/7 , -202/105 ), ( 7/20 , 101/150 )
**u= 63/26 , ht= 9 ; ( 505/24 , 1481/144 ), ( -4/9 , 47/54 )
**u= 63/38 , ht= 16 ; ( -9/67 , 346/201 ), ( -3/16 , -113/96 )
**u= 63/44 , ht= 21 ; ( -21 , 83/3 ), ( 111 , 592/3 )
**u= 63/59 , ht= 57 ; ( -478/183 , 2606/549 ), ( 57/2 , 167/3 )
**u= 63/64 , ht= 7315 ; ( -7315/7057 , -229417/84684 ), ( -9583/9325 , -303127/111900 )
**u= 63/88 , ht= 49 ; ( 914/67 , 23419/804 ), ( 17/49 , -334/147 )
**u= 63/94 , ht= 331 ; ( 745/181 , -5104/543 ), ( 331/190 , -5317/1140 )
**u= 63/100 , ht= 1 ; ( -19267/18865 , -952783/282975 ), ( -1 , 10/3 )
**u= 64/3 , ht= 89 ; ( 61/89 , -1729/712 ), ( -991/821 , -15089/6568 )
**u= 64/7 , ht= 1 ; ( -25/39 , -187/104 ), ( -1 , -7/8 )
**u= 64/11 , ht= 1311 ; ( 163/1311 , 343/184 ), ( 5871/3083 , -79629/24664 )
**u= 64/15 , ht= 41 ; ( -41/31 , 201/248 ), ( -53/77 , 181/616 )
**u= 64/43 , ht= 365 ; ( 563/297 , -2359/792 ), ( -279/365 , 5397/2920 )
**u= 64/63 , ht= 1 ; ( 49145/47367 , -3032377/1136808 ), ( 1 , 21/8 )
**u= 64/83 , ht= 4567 ; ( 4567/1413 , -26191/3768 ), ( -2169/6131 , 107121/49048 )
**u= 64/87 , ht= 559 ; ( 4079/599 , 69227/4792 ), ( 559/95 , 10249/760 )
**u= 64/91 , ht= 213 ; ( 16183/6901 , 306199/55208 ), ( 31/213 , -3709/1704 )
**u= 65/4 , ht= 1223 ; ( -1223/1191 , -2/397 ), ( -1353/749 , -3291/749 )
**u= 65/8 , ht= 191 ; ( 1332/1499 , -7645/5996 ), ( 191/32 , 1601/128 )
**u= 65/12 , ht= 19 ; ( -19/17 , -15/17 ), ( 8659/4243 , 14642/4243 )
**u= 65/23 , ht= 32 ; ( 32/9 , 2/3 ), ( 729/1097 , -1095/1097 )
**u= 65/24 , ht= 73 ; ( 503/266 , -1657/1064 ), ( -14/73 , 55/292 )
**u= 65/31 , ht= 3293 ; ( -6142/399 , 1628/133 ), ( 1371/3293 , 93/89 )
**u= 65/32 , ht= 11 ; ( 11/3 , -7/2 ), ( -3/11 , 21/22 )
**u= 65/33 , ht= 283 ; ( -184/283 , 498/283 ), ( 2699/898 , -2278/449 )
**u= 65/36 , ht= 399 ; ( 2723/1031 , 3271/1031 ), ( -383/399 , 2288/1197 )
**u= 65/47 , ht= 6221 ; ( 4247/6221 , 12565/6221 ), ( -6937/2651 , 12961/2651 )
**u= 65/48 , ht= 649 ; ( 649/73 , -906/73 ), ( 1231/253 , 4501/506 )
**u= 65/56 , ht= 8 ; ( 1/8 , -61/32 ), ( 44761/4287 , -85141/4287 )
**u= 65/63 , ht= 11 ; ( 3/11 , -67/33 ), ( -11/3 , 67/9 )
**u= 65/81 , ht= 108 ; ( -1052/359 , 6706/1077 ), ( 19/108 , 985/486 )
**u= 65/84 , ht= 4373 ; ( 4373/961 , 295/31 ), ( -7967/3851 , 19313/3851 )
**u= 65/87 , ht= 227 ; ( 3736/53 , -7758/53 ), ( 227/121 , -569/121 )
**u= 65/92 , ht= 3083 ; ( -78327/21401 , -175088/21401 ), ( 1979/3083 , 8032/3083 )
**u= 65/96 , ht= 43 ; ( -43/19 , 11/2 ), ( -27398/3181 , 517427/25448 )
**u= 70/13 , ht= 46 ; ( -134/113 , 155/226 ), ( 46/7 , 167/14 )
**u= 70/33 , ht= 976 ; ( 283/976 , 3243/1952 ), ( 8728/14041 , -35927/28082 )
**u= 70/41 , ht= 279 ; ( 8/279 , -317/186 ), ( -228/469 , -1287/938 )
**u= 70/73 , ht= 927 ; ( -2524/907 , -9715/1814 ), ( 416/927 , -3709/1854 )
**u= 72/7 , ht= 159 ; ( 52/339 , -9427/4068 ), ( 152/159 , -871/1908 )
**u= 72/23 , ht= 320 ; ( -604/247 , 287/2964 ), ( 251/320 , -4213/3840 )
**u= 72/31 , ht= 265 ; ( 596/69 , -4417/828 ), ( 48/265 , 2093/3180 )
**u= 72/35 , ht= 71 ; ( 2818/1733 , 44159/20796 ), ( -34/71 , 971/852 )
**u= 72/43 , ht= 339 ; ( 38/339 , -6979/4068 ), ( -983/6 , -20183/72 )
**u= 72/67 , ht= 2130 ; ( 7431/2942 , 162341/35304 ), ( -751/2130 , 45661/25560 )
**u= 72/71 , ht= 1505 ; ( -8300/433 , -171217/5196 ), ( -412/1505 , -32513/18060 )
**u= 72/83 , ht= 151 ; ( -151/98 , -4243/1176 ), ( 3014/5255 , 142003/63060 )
**u= 72/91 , ht= 370 ; ( 370/279 , -11551/3348 ), ( 279/370 , -11551/4440 )
**u= 72/95 , ht= 263 ; ( -1268/8707 , 235655/104484 ), ( -212/263 , -8635/3156 )
**u= 73/6 , ht= 247 ; ( -245/247 , -202/247 ), ( -1376/589 , 6341/1178 )
**u= 73/10 , ht= 233 ; ( -348/313 , -287/626 ), ( -233/133 , 410/133 )
**u= 73/22 , ht= 89 ; ( 89/67 , 86/67 ), ( -2977/1819 , 4696/1819 )
**u= 73/34 , ht= 879 ; ( 24915/1231 , 18698/1231 ), ( -879/430 , -2961/860 )
**u= 73/38 , ht= 319 ; ( -319/72 , -71/16 ), ( 6012/3751 , -21231/7502 )
**u= 73/42 , ht= 35629 ; ( 54517/1009 , 58352/1009 ), ( 35629/2617 , 60558/2617 )
**u= 73/43 , ht= 171 ; ( -1360/1607 , -3124/1607 ), ( 171/128 , -81/32 )
**u= 73/45 , ht= 426 ; ( 426/41 , -1498/123 ), ( -3257/5282 , 4155/2641 )
**u= 73/54 , ht= 283 ; ( 97/283 , 1586/849 ), ( 4148/28265 , 238841/169590 )
**u= 73/58 , ht= 529 ; ( 529/413 , -1088/413 ), ( -30361/42748 , 168227/85496 )
**u= 73/66 , ht= 8887 ; ( 8887/4597 , 16876/4597 ), ( -361303/9518 , -1393567/19036 )
**u= 73/69 , ht= 34744 ; ( 34744/1279 , 57976/1279 ), ( 38257/6632 , -9469/829 )
**u= 73/74 , ht= 12891 ; ( 808/30087 , -40333/20058 ), ( -12891/4825 , 27252/4825 )
**u= 73/75 , ht= 193 ; ( 562/209 , -5386/1045 ), ( -193/118 , 221/59 )
**u= 81 , ht= 53 ; ( -92/151 , 6866/1359 ), ( 53/50 , -508/225 )
**u= 81/4 , ht= 47 ; ( 11/47 , 1321/423 ), ( 173/115 , 3782/1035 )
**u= 81/7 , ht= 793 ; ( 688/793 , -9994/7137 ), ( -5993/6040 , 19421/27180 )
**u= 81/8 , ht= 28 ; ( 28/27 , -563/972 ), ( 319/216 , 20689/7776 )
**u= 81/16 , ht= 115 ; ( -59/277 , 4417/2493 ), ( -103/115 , -1787/2070 )
**u= 81/23 , ht= 84 ; ( 84/61 , -626/549 ), ( 61/84 , -313/378 )
**u= 81/28 , ht= 15805 ; ( -15805/15023 , 209221/135207 ), ( -167903/168685 , 2349569/1518165 )
**u= 81/32 , ht= 8 ; ( 912/197 , -32213/14184 ), ( 3/8 , 403/576 )
**u= 81/40 , ht= 166 ; ( 883/203 , 7373/1827 ), ( 91/166 , -7415/5976 )
**u= 81/44 , ht= 1081 ; ( 1081/333 , 10871/2997 ), ( -1163/2049 , 25351/18441 )
**u= 81/47 , ht= 189 ; ( 4610/1179 , 48356/10611 ), ( 189 , 2893/9 )
**u= 81/55 , ht= 59 ; ( -4/59 , -938/531 ), ( -59/4 , 469/18 )
**u= 81/56 , ht= 3973 ; ( -3973/381 , -46969/3429 ), ( -4828/261 , 308377/9396 )
**u= 81/65 , ht= 756 ; ( 756/41 , -10082/369 ), ( 2559/106 , -21344/477 )
**u= 81/76 , ht= 497 ; ( 439/857 , 16432/7713 ), ( 497/79 , 8818/711 )
**u= 81/80 , ht= 321 ; ( -70267/9093 , -1098436/81837 ), ( 191/321 , 6028/2889 )
**u= 81/100 , ht= 199 ; ( 151/199 , -4732/1791 ), ( 313/361 , 44396/16245 )
**u= 82/11 , ht= 108 ; ( 53/108 , 133/72 ), ( 996/1051 , 1503/2102 )
**u= 82/19 , ht= 2784 ; ( -6931/7444 , -19981/14888 ), ( -1891/2784 , 29/192 )
**u= 82/27 , ht= 176 ; ( 176/67 , -51/134 ), ( 619/1348 , -1197/2696 )
**u= 82/31 , ht= 1207 ; ( -1207/2 , 59/4 ), ( 13/1470 , -83/2940 )
**u= 82/43 , ht= 51 ; ( -8/51 , -57/34 ), ( -3484/173 , 11641/346 )
**u= 82/63 , ht= 186 ; ( -157/186 , -2443/1116 ), ( -3386/317 , 12409/634 )
**u= 82/79 , ht= 190 ; ( 190/111 , -7/2 ), ( 57054/44651 , -270951/89302 )
**u= 85/3 , ht= 13 ; ( 647/931 , 2551/931 ), ( -13 , 49 )
**u= 85/12 , ht= 4019 ; ( -3763/4019 , 4694/4019 ), ( 6161/703 , -12316/703 )
**u= 85/16 , ht= 719 ; ( -547/1049 , 3493/2098 ), ( -719/207 , 1276/207 )
**u= 85/19 , ht= 39 ; ( 37/39 , -17/13 ), ( -2403/2441 , -2961/2441 )
**u= 85/21 , ht= 62 ; ( 62/41 , 20/41 ), ( -1811/2858 , -38/1429 )
**u= 85/24 , ht= 67 ; ( 101/157 , 245/157 ), ( 64/67 , -353/268 )
**u= 85/28 , ht= 229 ; ( -229/117 , 44/39 ), ( 1053/361 , 1707/361 )
**u= 85/36 , ht= 29 ; ( -29/3 , 50/9 ), ( 8633/95501 , 54323/95501 )
**u= 85/37 , ht= 618 ; ( 674/177 , 168/59 ), ( 211/618 , 256/309 )
**u= 85/43 , ht= 1707 ; ( -1707/589 , 1799/589 ), ( 13621/18242 , 13894/9121 )
**u= 85/44 , ht= 427 ; ( 427/9 , 131/3 ), ( 1101/67 , -1836/67 )
**u= 85/48 , ht= 113 ; ( 1067/1429 , -2662/1429 ), ( -113/109 , -445/218 )
**u= 85/52 , ht= 29 ; ( 1397/3269 , 5848/3269 ), ( 29/3 , -50/3 )
**u= 85/53 , ht= 56 ; ( 56/3 , -22 ), ( 447/1136 , -771/568 )
**u= 85/64 , ht= 1129 ; ( 1129/57 , -1059/38 ), ( 2687/1339 , 20921/5356 )
**u= 85/67 , ht= 37864 ; ( -37864/9523 , -57910/9523 ), ( 55523/15296 , -52339/7648 )
**u= 85/72 , ht= 89 ; ( -923/1499 , 3164/1499 ), ( 89/18 , 2041/216 )
**u= 85/76 , ht= 9297 ; ( -9297/3851 , 16639/3851 ), ( 104549/52033 , -217433/52033 )
**u= 85/88 , ht= 6379 ; ( -1123/6379 , -13079/6379 ), ( -86831/27503 , -182584/27503 )
**u= 85/99 , ht= 1249 ; ( -1249/457 , 2575/457 ), ( 2791/872 , -3077/436 )
**u= 89/2 , ht= 337 ; ( 333/337 , -278/337 ), ( 441/314 , -2937/628 )
**u= 89/6 , ht= 1168 ; ( -8435/23617 , -61298/23617 ), ( 1168/961 , 3903/1922 )
**u= 89/14 , ht= 5573 ; ( 1/5573 , 10762/5573 ), ( -48863/43411 , 62858/43411 )
**u= 89/18 , ht= 73 ; ( -1670/7029 , -74021/42174 ), ( 73/10 , -259/20 )
**u= 89/21 , ht= 2441 ; ( 40/4247 , 7288/4247 ), ( 2441/488 , 519/61 )
**u= 89/26 , ht= 3755 ; ( -3755/1913 , 538/1913 ), ( 18253/3199 , -30064/3199 )
**u= 89/29 , ht= 1010 ; ( 1010/459 , -134/153 ), ( -1107/2750 , 273/1375 )
**u= 89/30 , ht= 598 ; ( 983/398 , 717/796 ), ( 598/583 , -1843/1166 )
**u= 89/34 , ht= 2979 ; ( -15809/747 , 974/249 ), ( 2979/1687 , 4854/1687 )
**u= 89/38 , ht= 121 ; ( 121/69 , 44/23 ), ( 51543/36883 , 7884/3353 )
**u= 89/43 , ht= 2588 ; ( 2588/207 , -236/23 ), ( -33273/11300 , -13923/2825 )
**u= 89/53 , ht= 180564 ; ( 222028/1897 , -247724/1897 ), ( 27991/180564 , 51763/45141 )
**u= 89/59 , ht= 8764 ; ( 8764/1153 , -11152/1153 ), ( 41773/14220 , 18844/3555 )
**u= 89/66 , ht= 6025 ; ( -17474/10543 , 61647/21086 ), ( 2197/6025 , 9248/6025 )
**u= 89/69 , ht= 11912 ; ( -13336/3707 , 20348/3707 ), ( 7979/11912 , 5631/2978 )
**u= 89/78 , ht= 1655 ; ( -1655/22 , 5231/44 ), ( 124277/118583 , 302156/118583 )
**u= 89/90 , ht= 18919 ; ( 18919/4229 , 34088/4229 ), ( -19457/7388 , -82299/14776 )
**u= 90/7 , ht= 181 ; ( -92/181 , -2455/1086 ), ( -1583/1504 , -10157/9024 )
**u= 90/19 , ht= 86 ; ( 67/86 , 751/516 ), ( 542/599 , -3437/3594 )
**u= 90/31 , ht= 203 ; ( 1132/419 , -2333/2514 ), ( -76/203 , 433/1218 )
**u= 90/47 , ht= 2121 ; ( 8733/4456 , -66185/26736 ), ( -652/2121 , -13549/12726 )
**u= 90/59 , ht= 1494 ; ( 727/1494 , -16577/8964 ), ( -4682/8121 , 77777/48726 )
**u= 90/71 , ht= 629 ; ( 132/629 , -7049/3774 ), ( 6383/3756 , 77845/22536 )
**u= 90/79 , ht= 1019 ; ( 1019/308 , 10295/1848 ), ( -5512/13211 , 140383/79266 )
**u= 90/83 , ht= 687 ; ( 106/687 , -8071/4122 ), ( -34978/231369 , -2311187/1388214 )
**u= 90/91 , ht= 1661 ; ( 52111/3062 , -546791/18372 ), ( -562/1661 , 18661/9966 )
**u= 91/6 , ht= 11 ; ( 151/157 , -158/157 ), ( -11/10 , -29/20 )
**u= 91/10 , ht= 19 ; ( 9/19 , 2 ), ( -19/9 , 38/9 )
**u= 91/11 , ht= 267 ; ( 74/267 , 184/89 ), ( -3693/580 , -3903/290 )
**u= 91/16 , ht= 23 ; ( -11/23 , 79/46 ), ( 1629/605 , -2892/605 )
**u= 91/29 , ht= 157 ; ( 1004/453 , 102/151 ), ( 99/157 , -123/157 )
**u= 91/31 , ht= 144 ; ( 224/193 , 292/193 ), ( -73/144 , 23/36 )
**u= 91/33 , ht= 406 ; ( -628/527 , 832/527 ), ( -89/406 , -27/203 )
**u= 91/34 , ht= 97 ; ( 97/56 , -179/112 ), ( 93/569 , 114/569 )
**u= 91/43 , ht= 44 ; ( 44 , 34 ), ( -99/116 , -93/58 )
**u= 91/54 , ht= 2849 ; ( -2849/757 , -10258/2271 ), ( 9361/7987 , -54874/23961 )
**u= 91/60 , ht= 3187 ; ( 7799/359 , -9728/359 ), ( -3187/913 , 5695/913 )
**u= 91/64 , ht= 59 ; ( 43/59 , 239/118 ), ( -131/125 , 286/125 )
**u= 91/72 , ht= 29 ; ( -29/11 , 47/11 ), ( 11/29 , -47/29 )
**u= 91/82 , ht= 232 ; ( -55/232 , -911/464 ), ( -4309/529 , -8342/529 )
**u= 91/88 , ht= 271 ; ( -271/81 , -6 ), ( 81/4591 , -7776/4591 )
**u= 91/90 , ht= 73 ; ( 461/511 , -1290/511 ), ( -53/73 , -164/73 )
**u= 91/93 , ht= 467 ; ( 28556/4159 , -50874/4159 ), ( -463/467 , -1243/467 )
**u= 91/97 , ht= 70 ; ( 21874/3249 , -13354/1083 ), ( -27/70 , 69/35 )
**u= 91/100 , ht= 113 ; ( 5217/1333 , 9997/1333 ), ( 59/113 , 1207/565 )
**u= 97/6 , ht= 691 ; ( 361/691 , -1714/691 ), ( -1957/1247 , -4422/1247 )
**u= 97/10 , ht= 487 ; ( -53/487 , 1106/487 ), ( -1661/1719 , -1054/1719 )
**u= 97/14 , ht= 257 ; ( 1369/11301 , -7464/3767 ), ( 222/257 , 27/514 )
**u= 97/18 , ht= 298 ; ( -298/251 , 341/502 ), ( -557/711 , -182/2133 )
**u= 97/19 , ht= 661 ; ( 186/661 , -1162/661 ), ( 691/900 , -46/225 )
**u= 97/22 , ht= 23 ; ( 9221/17328 , -18623/11552 ), ( 21/23 , 24/23 )
**u= 97/37 , ht= 161 ; ( 50/161 , 262/161 ), ( 299/1958 , 287/979 )
**u= 97/42 , ht= 42755 ; ( -42755 , 25678 ), ( -36383/45475 , 65426/45475 )
**u= 97/46 , ht= 18925 ; ( -18925/5846 , -35191/11692 ), ( 37226/13191 , -124363/26382 )
**u= 97/50 , ht= 1166 ; ( -1166/141 , 727/94 ), ( 201/4502 , 41253/45020 )
**u= 97/54 , ht= 124 ; ( 7607/68 , -46781/408 ), ( -124/109 , -1423/654 )
**u= 97/58 , ht= 819 ; ( 15931/5993 , -20594/5993 ), ( 819/703 , -1608/703 )
**u= 97/61 , ht= 168 ; ( -168/107 , -272/107 ), ( -241/64 , -53/8 )
**u= 97/66 , ht= 2873 ; ( 2290/2873 , 11723/5746 ), ( -4153/962 , 14869/1924 )
**u= 97/69 , ht= 7070 ; ( -7070/1601 , -9874/1601 ), ( 90017/107842 , -107993/53921 )
**u= 97/82 , ht= 315 ; ( 315/151 , 562/151 ), ( 20249/8482 , -80647/16964 )
**u= 97/86 , ht= 44465 ; ( -44465/5544 , 15921/1232 ), ( 33264/81811 , 290187/163622 )
**u= 97/90 , ht= 964 ; ( -28676/30571 , 7993/3218 ), ( -741/964 , 12863/5784 )
**u= 97/94 , ht= 6546 ; ( 887579/30111 , -502116/10037 ), ( 6546/5465 , -31833/10930 )
**u= 100/7 , ht= 1 ; ( -1 , 7/10 ), ( -1 , -7/10 )
**u= 100/11 , ht= 45 ; ( 1/45 , -111/50 ), ( 3681/667 , -16119/1334 )
**u= 100/39 , ht= 107 ; ( -101/107 , 353/214 ), ( 115/427 , -2239/4270 )
**u= 100/43 , ht= 211 ; ( 767/93 , 1579/310 ), ( -39/211 , -1389/2110 )
**u= 100/47 , ht= 7823 ; ( -9439/4473 , 6863/2982 ), ( -1953/7823 , 67749/78230 )
**u= 100/51 , ht= 1355 ; ( 8719/12085 , -215649/120850 ), ( 233/1355 , -12757/13550 )
**u= 100/63 , ht= 1 ; ( -1 , 21/10 ), ( -1 , -21/10 )
**u= 100/67 , ht= 147 ; ( -147/121 , 565/242 ), ( -139/1871 , 23783/18710 )
556
>

■これらのuについて、(2),(3a),(3b)を満たす有理数解(x,y,t)を持たないものもあれば、有理数解(x,y,t)を持つものもある。
これらのuを順に調べれば良い。

ここからは、A^4+B^4=C^4+D^4と同様なので、最終的に得られた整点のみ記述する。
ここで、対応する整点が見つかった各有理数uについて、0 < A < B, 0 < C < D, 0 < A < Cを満たすように、
A,B,C,Dの符号を変更したり、A,B,C,Dを交換して、Dの小さい順に並び替えると、以下のようになる。

[2026.05.24追記]u=1/63のときの整数解を追加した。

[参考文献]


Last Update: 2026.06.16
H.Nakao

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