A292337 Numbers k such that k^2 divides 12^k + 1.

1, 13, 1027, 468481, 2890927, 37009999, 228383233, 2126334691, 104180336299, 8230246567621, 34238014256797, 76626723259567, 131147819778859, 219609509027857, 472852182249889, 1033753383066391, 2704803126286963, 10360677762529861, 16436880348770011, 17349151213200703, 81666517262244889, 686779630199762359

Offset: 1

Author

Max Alekseyev, Sep 16 2017

Keywords

• nonn

Links

• Max Alekseyev, Table of n, a(n) for n = 1..29

Crossrefs

Subsequence of A015961.

Cf. A128405, A128685.