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%I
%S 1,13,1027,468481,2890927,37009999,228383233,2126334691,104180336299,
%T 8230246567621,34238014256797,76626723259567,131147819778859,
%U 219609509027857,472852182249889,1033753383066391,2704803126286963,10360677762529861,16436880348770011,17349151213200703,81666517262244889,686779630199762359
%N Numbers k such that k^2 divides 12^k + 1.
%H Max Alekseyev, <a href="/A292337/b292337.txt">Table of n, a(n) for n = 1..29</a>
%Y Subsequence of A015961.
%Y Cf. A128405, A128685.
%K nonn
%O 1,2
%A _Max Alekseyev_, Sep 16 2017
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