a(n) is the smallest number which can be represented as the sum of 3 distinct positive n-th powers in exactly 2 ways, or -1 if no such number exists.

A374421

a(n) is the smallest number which can be represented as the sum of 3 distinct positive n-th powers in exactly 2 ways, or -1 if no such number exists.

Terms

    a(0) =8a(1) =62a(2) =1009a(3) =6578a(4) =1375298099a(5) =160426514

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