cp's OEIS Frontend

A027207 Self-convolution of row n of array T given by A026725.

%I A027207 #10 Oct 25 2019 16:52:11
%S A027207 1,2,6,26,91,414,1519,6980,26176,120596,457880,2110422,8076044,
%T A027207 37211408,143165518,659264978,2546261659,11717539646,45387607779,
%U A027207 208729977124,810316893827
%N A027207 Self-convolution of row n of array T given by A026725.
%p A027207 A027207 := proc(n)
%p A027207     add( A026725(n,k)*A026725(n,n-k),k=0..n) ;
%p A027207 end proc: # _R. J. Mathar_, Oct 21 2019
%K A027207 nonn
%O A027207 0,2
%A A027207 _Clark Kimberling_