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 A111162 #3 Mar 30 2012 18:39:24
%S A111162 1,0,2,4,-224,-682,448860,1798632,-5812053904,-29073764054,
%T A111162 308536033263028,1851536040675260,-51042181394221030584,
%U A111162 -357323352359720720226,21912757051634305821218156,175309202992453704954823888
%N A111162 a(n)=sum_{k=0...n-1}B_k*A000364(k)*binomial(n,k) where B_k is the k-th Bernoulli number.
%K A111162 sign
%O A111162 0,3
%A A111162 _Benoit Cloitre_, Oct 20 2005