A113715 Row sums of triangle A113711, in which row n forms a polynomial in y=2*k that generates diagonal n as k=0,1,2,... for n>=0.

1, 2, 5, 18, 89, 546, 3893, 31210, 276393, 2674346, 28053749, 317122018, 3843832473, 49745582994, 684808185109, 9994279232186, 154164863607273, 2506527296803674, 42846740489105301, 768278266512841330

Offset

0,2

Links

Table of n, a(n) for n=0..19.

Formula

a(n) = Sum_{k=0..n} Sum_{j=0..n-k} A113711(n-k, j)*(2*k)^j.

Crossrefs

Cf. A113711, A113712 (column 1), A113713 (column 2), A113714 (column 3).

Sequence in context: A094294 A005500 A020025 * A227094 A173227 A099556

Adjacent sequences: A113712 A113713 A113714 * A113716 A113717 A113718

Keyword

nonn

Author

Paul D. Hanna, Nov 08 2005

Status

approved