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例子
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成对(x,y),使x^3-y^3=a(1)。。。,a(6):
7 = (2, 1);
721 = (16, 15), (9, 2);
3367=(34,33),(16,9),(15,2)升
4118877 = (162, 51), (165, 72), (178, 115), (678, 675);
1412774811 = (1134, 357), (1155, 504), (1246, 805), (2115, 2004), (4746, 4725);
424910390480793 = (596001, 595602), (317982, 316575), (141705, 134268), (83482, 53935), (77385, 33768), (75978, 23919).
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