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 A179434 #2 Mar 30 2012 18:37:22
%S A179434 1,2,13,571,172585,357625693,5248165593907,566958191345077996,
%T A179434 465798195439736703244606,2982999334066325867630228374270,
%U A179434 151658307264909973462110073089257457502
%N A179434 Row sums of triangle A179430.
%C A179434 T=A179430 is a Triangular matrix where column 0 of T^m equals C(m*3^(n-1), n) at row n for n>=0, m>=0.
%o A179434 (PARI) {a(n)=local(M=matrix(n+2, n+2, r, c, binomial(r*3^(c-2), c-1)), P); P=matrix(n+2, n+2, r, c, binomial((r+1)*3^(c-2), c-1)); sum(k=0,n,(P~*M~^-1)[n+1, k+1])}
%Y A179434 Cf. A179430, A179431, A136393, A179432, A179433.
%K A179434 nonn
%O A179434 0,2
%A A179434 _Paul D. Hanna_, Jul 21 2010