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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