a^3=0,1,8,27,64,・・・

1,2,9,28,65,

8,9,16,35,72

27,28,35,54,91

64,65,72,91,128

a^3+b^3=0,1,2,8,9,16,27,28,35,54,64,65,72,91,・・・

これに対しては15定理は成立しない。

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a^3+b^3+c^3+d^3+e^3+f^3

0,1,2,3,4,5,6,8,9,10,11,12,13,16,17,18,19,20,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,43,44,45,46,48,51,52,53,54,55,56,57,58,59,60,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,78,79,80,81,82,83,84,85,86,88,89,90,91,92,93,94,95,96,97,98,99,100,・・

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これまで見つかっていないのは7,14,15,21,22,23,42,47,49,50,61,77,87

a^3+b^3+c^3=0,1,2,3,8,9,10,16,17,24,27,28,29,35,36,43,54,55,62,64,65,66,72,73,80,84,91,92,99,・・・

0,1,2,3ですべてみつかるはず

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