A179434 Row sums of triangle A179430.

1, 2, 13, 571, 172585, 357625693, 5248165593907, 566958191345077996, 465798195439736703244606, 2982999334066325867630228374270, 151658307264909973462110073089257457502

Offset: 0

Author

Paul D. Hanna, Jul 21 2010

Keywords

• nonn

Comments

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.

Crossrefs

Cf. A179430, A179431, A136393, A179432, A179433.

Programs

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])}