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A113719 Row sums of triangle A113716, in which row n forms a polynomial in y=3*k that generates diagonal n as k=0,1,2,... for n>=0. 3
1, 2, 6, 31, 230, 2106, 22309, 265490, 3491364, 50191633, 782625062, 13155329058, 237183163807, 4566977815064, 93561632638164, 2032495366177429, 46677419939036132, 1130141423614269072, 28774960495683155947 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..18.

FORMULA

a(n) = Sum_{k=0..n} Sum_{j=0..n-k} A113711(n-k, j)*(3*k)^j.

CROSSREFS

Cf. A113716, A113717 (column 1), A113718 (column 2).

Sequence in context: A007710 A275558 A094639 * A018225 A217143 A075845

Adjacent sequences:  A113716 A113717 A113718 * A113720 A113721 A113722

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 08 2005

STATUS

approved

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Last modified October 15 15:48 EDT 2018. Contains 316236 sequences. (Running on oeis4.)