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A179434 Row sums of triangle A179430. 4
1, 2, 13, 571, 172585, 357625693, 5248165593907, 566958191345077996, 465798195439736703244606, 2982999334066325867630228374270, 151658307264909973462110073089257457502 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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.

LINKS

Table of n, a(n) for n=0..10.

PROG

(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])}

CROSSREFS

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

Sequence in context: A012981 A154356 A013111 * A101342 A119122 A109947

Adjacent sequences:  A179431 A179432 A179433 * A179435 A179436 A179437

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jul 21 2010

STATUS

approved

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Last modified May 23 07:08 EDT 2019. Contains 323508 sequences. (Running on oeis4.)