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 A097302 #4 Oct 12 2012 14:40:21 %S A097302 12,60,21,1,11,13,1,17,19,1,23,1,1,29,31,1,1,37,1,41,43,1,47,1,1,53,1, %T A097302 1,59,61,1,1,67,1,71,73,1,1,79,1,83,1,1,89,1,1,1,97,1,101,103,1,107, %U A097302 109,1,113,1,1,1,1,1,1,127,1,131,1,1,137,139,1,1,1,1,149,151,1,1,157,1,1,163 %N A097302 Denominators of rationals used in the Euler-Maclaurin type derivation of Stirling's formula for N!. %C A097302 Numerators are given in A097301 with comments and references. %F A097302 a(n)=denominator(B(n)) with B(n):=Bernoulli(2*n+2)*(2*n)!/(2*n+2) and Bernoulli(n)= A027641(n)/A027642(n). %K A097302 nonn,frac,easy %O A097302 0,1 %A A097302 _Wolfdieter Lang_, Aug 13 2004