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 A132627 #2 Mar 30 2012 18:37:04
%S A132627 1,1,4,60,2960,454072,216266368,328381917376,1646431825247488,
%T A132627 28147649085162289088,1682689316516069630268928,
%U A132627 358405429181246295625283815424,275845379756819156941815068510302208
%N A132627 Column 1 of triangle A132625.
%C A132627 Triangle T=A132625 is generated by matrix powers of itself such that row n+1 of T = row n of T^(2^n) with appended '1' for n>=0 with T(0,0)=1.
%o A132627 (PARI) {a(n)=local(A=vector(n+1), p); A[1]=1; for(j=1, n, p=2^(n+1)-2^(n-j+1)-j; A=Vec((Polrev(A)+x*O(x^p))/(1-x))); A[p+1]}
%Y A132627 Cf. A132625, A132626.
%K A132627 nonn
%O A132627 0,3
%A A132627 _Paul D. Hanna_, Aug 25 2007