A113333 Column sums of triangle A113129.

1, 1, 3, 20, 217, 3206, 59000, 1288184, 32391811, 919625298, 29062669744, 1011423361344, 38432306102230, 1583371370586372, 70311532983998416, 3348279599587251984, 170232740676793931347, 9204327574128495048866

Offset

0,3

Links

Table of n, a(n) for n=0..17.

Formula

a(k) = Sum_{n=k..2*k} A113129(n, k) for k>=0, where A113129(n, k)=0 for n>=2*k>0.

Crossrefs

Cf. A113129.

Sequence in context: A006963 A243426 A365438 * A206405 A307363 A052851

Adjacent sequences: A113330 A113331 A113332 * A113334 A113335 A113336

Keyword

nonn

Author

Paul D. Hanna, Nov 03 2005

Status

approved