%I #8 Mar 20 2022 22:55:51
%S 1,2,1,4,2,1,6,4,4,1,9,6,11,4,1,12,9,24,11,6,1,16,12,46,24,22,6,1,20,
%T 16,80,46,62,22,8,1,25,20,130,80,148,62,37,8,1,30,25,200,130,314,148,
%U 128,37,10,1
%N A128174 * A007318 * A133080.
%C Row sums = 2^n - 1, A000225: (1, 3, 7, 15, 31, ...).
%F A128174 * A007318 * A133080 as infinite lower triangular matrices.
%e First few rows of the triangle:
%e 1;
%e 2, 1;
%e 4, 2, 1;
%e 6, 4, 4, 1;
%e 9, 6, 11, 4, 1;
%e 12, 9, 24, 11, 6, 1;
%e 16, 12, 46, 24, 22, 6, 1;
%e 20, 16, 80, 46, 62, 22, 8, 1;
%e ...
%Y Cf. A133080, A007318, A128174, A000225.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_, Sep 14 2007