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 A107673 #3 Mar 30 2012 18:36:46
%S A107673 1,1,19,1279,190769,50664371,21139541089,12783260017161,
%T A107673 10590309839157381,11531675416606553251,15987041289872773372042,
%U A107673 27515661456632011548886402,57600689265868641385517070539
%N A107673 a(n) = A107672(n)/(n+1)^3.
%o A107673 (PARI) {a(n)=local(P=matrix(n+1,n+1,r,c,if(r>=c,(r^3)^(r-c)/(r-c)!)), D=matrix(n+1,n+1,r,c,if(r==c,r)));(P^-1*D*P)[n+1,1]/(n+1)^3}
%Y A107673 Cf. A107671, A107672, A107676.
%K A107673 nonn
%O A107673 0,3
%A A107673 _Paul D. Hanna_, Jun 07 2005