%I #10 Mar 29 2021 08:02:37
%S 11,76,131,141,206,262,271,336,393,401,466,524,531,596,655,661,726,
%T 786,791,856,917,921,986,1048,1051,1116,1179,1181,1246,1310,1311,1376,
%U 1441,1506,1571,1572,1636,1701,1703,1766,1831,1834,1896,1961,1965,2026,2091
%N Numbers k such that numerator of Bernoulli(2*k) is divisible by 131, the sixth irregular prime.
%H Amiram Eldar, <a href="/A092225/b092225.txt">Table of n, a(n) for n = 1..2900</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BernoulliNumber.html">Bernoulli Number</a>.
%t Select[ Range[ 2095], Mod[ Numerator[ BernoulliB[2# ]], 131] == 0 &]
%Y Cf. A000928, A091216, A092221, A092222, A092223, A092224, A092226, A092227, A092228, A092229.
%K nonn
%O 1,1
%A _Robert G. Wilson v_, Feb 25 2004