A256547 -id:A256547 - cp's OEIS frontend

A256812 Smallest k>=1 such that n^6 + (n+1)^6 + ... + (n+k)^6 is prime or a(n)=0 if there is no such k.

0, 2, 0, 2, 0, 0, 0, 0, 5, 0, 0, 6, 20, 0, 0, 5, 20, 0, 20, 0, 5, 13, 5, 5, 0, 0, 0, 0, 5, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 6, 20, 0, 41, 2, 0, 5, 13, 0, 0, 0, 0, 6, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 20, 0, 20, 41, 0, 0, 0, 5, 0, 0, 0, 41, 0, 13, 20

Offset: 1

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Vladimir Shevelev and Peter J. C. Moses, Apr 10 2015

nonn

Using similar arguments as in comment in A256547, we obtain that every term is 0,2,5,6,13,20,41.

Peter J. C. Moses, Table of n, a(n) for n = 1..1000

Cf. A001014, A089306, A256385, A256503, A256546, A256547, A256581.

cp's OEIS Frontend

A256812 Smallest k>=1 such that n^6 + (n+1)^6 + ... + (n+k)^6 is prime or a(n)=0 if there is no such k.

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