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%I #4 Feb 18 2022 22:21:28
%S 1,2,1,3,4,2,4,9,9,3,5,16,24,17,5,6,25,50,55,33,8,7,36,90,135,123,61,
%T 13,8,49,147,280,343,259,112,21,9,64,224,518,798,812,532,202,34,10,81,
%U 324,882,1638,2100,1848,1062,361,55
%N A007318 * A128540.
%C Row sums = A069403: (1, 3, 9, 25, 67, ...).
%F A007318 * A128540 as infinite lower triangular matrices; (binomial transform of A128540).
%e First few rows of the triangle:
%e 1;
%e 2, 1;
%e 3, 4, 2;
%e 4, 9, 9, 3;
%e 5, 16, 24, 17, 5;
%e 6, 25, 50, 55, 33, 8;
%e 7, 36, 90, 135, 123, 61, 13;
%e ...
%Y Cf. A007318, A128540, A069403.
%K nonn,tabl
%O 0,2
%A _Gary W. Adamson_, Mar 10 2007