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 A099596 #6 Mar 29 2015 19:36:15 %S A099596 3,5,11,17,23,47,59,83,107,137,167,179,227,239,257,263,317,347,359, %T A099596 383,431,443,467,479,503,557,563,587,647,659,719,797,827,839,857,863, %U A099596 887,983,1019,1091,1097,1187,1223,1259,1283,1307,1319,1367,1439,1487,1499 %N A099596 Primes p such that the denominator of the poly-Bernoulli number B(2,n) equals 8p. %C A099596 p such that A027644(p) = 8p. %t A099596 f[n_] := Denominator[(-1)^n*Sum[(-1)^m*m!*StirlingS2[n, m]/(m + 1)^2, {m, 0, n}]]; l = {}; Do[p = Prime[n]; If[f[p] == 8p, AppendTo[l, p]], {n, 240}]; l (* _Robert G. Wilson v_, Oct 28 2004 *) %K A099596 nonn %O A099596 1,1 %A A099596 _Ralf Stephan_, Oct 27 2004 %E A099596 More terms from _Robert G. Wilson v_, Oct 28 2004