A113713 Column 2 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, 5, 29, 189, 1373, 11037, 97565, 942109, 9869853, 111475229, 1349927453, 17444868637, 239615283741, 3486244426269, 53566700311069, 866907958202909, 14742110756459037, 262857666867286557, 4904594355185832477

Offset

0,2

Links

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

Formula

a(n) = Sum_{j=0..n} A113711(n, j)*4^j.

Crossrefs

Cf. A113711, A113712 (column 1), A113714 (column 3), A113715 (row sums).

Sequence in context: A346845 A367232 A078945 * A142980 A062191 A367240

Adjacent sequences: A113710 A113711 A113712 * A113714 A113715 A113716

Keyword

nonn

Author

Paul D. Hanna, Nov 08 2005

Status

approved