%I #4 Mar 30 2012 18:36:52

%S 1,5,29,189,1373,11037,97565,942109,9869853,111475229,1349927453,

%T 17444868637,239615283741,3486244426269,53566700311069,

%U 866907958202909,14742110756459037,262857666867286557,4904594355185832477

%N 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.

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

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

%K nonn

%O 0,2

%A _Paul D. Hanna_, Nov 08 2005