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 A112914 #3 Mar 30 2012 18:36:51
%S A112914 1,4,24,176,1492,14220,149812,1724760,21519108,289101836,4160750192,
%T A112914 63873461064,1042061108096,18008563271632,328712410879632,
%U A112914 6320649807989400,127724091041379492,2706397280528315148
%N A112914 Column 3 of triangle A112911.
%F A112914 a(n) = Sum_{k=0..n-1} (n-k+3)*A088716(k)*a(n-k-1) for n>0 with a(0)=1.
%o A112914 (PARI) {a(n)=local(A=Mat(1),B);for(m=2,n+4,B=matrix(m,m);for(i=1,m, for(j=1,i, if(j==i,B[i,j]=1,B[i,j]=-j*(A^-1)[i-j,1]);));A=B);return((A^-1)[n+4,4])}
%Y A112914 Cf. A112911 (triangle), A088716 (column 0), A112912 (column 1), A112913 (column 2).
%K A112914 nonn
%O A112914 0,2
%A A112914 _Paul D. Hanna_, Oct 06 2005