This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A093058 #10 Feb 16 2025 08:32:53
%S A093058 457,1298,2168,3009,3481,3879,4720,5590,6431,6962,7301,8142,9012,9853,
%T A093058 10443,10723,11564,12434,13275,13924,14145,14986,15856,16697,17405,
%U A093058 17567,18408
%N A093058 Numbers k such that numerator of Bernoulli(2k) is divisible by the square of 59, the second irregular prime.
%H A093058 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/BernoulliNumber.html">Bernoulli Number</a>.
%F A093058 If we omit multiples of 3481 and take first differences, it appears that we get a common difference of {841, 870} repeated.
%t A093058 Select[ Range[ 9695], Mod[ Numerator[ BernoulliB[2# ]], 59^2] == 0 &]
%Y A093058 Cf. A000928, A091216, A092221.
%K A093058 nonn
%O A093058 1,1
%A A093058 _Robert G. Wilson v_, Feb 26 2004
%E A093058 More terms from _Eric W. Weisstein_, Mar 19 2004