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%I #6 Mar 26 2022 04:17:36

%S 1,1,4,1,0,9,1,4,0,16,1,0,0,0,25,1,4,9,0,0,36,1,0,0,0,0,0,49,1,4,0,16,

%T 0,0,0,64,1,0,9,0,0,0,0,0,81,1,4,0,0,25,0,0,0,0,100

%N A051731 * A127733.

%C Row sums = A001157: (1, 5, 10, 21, 26, 25, 50, 50, ...).

%F A051731 * A127733 as infinite lower triangular matrices.

%e First few rows of the triangle:

%e 1;

%e 1, 4;

%e 1, 0, 9;

%e 1, 4, 0, 16;

%e 1, 0, 0, 0, 25;

%e 1, 4, 9, 0, 0, 36;

%e 1, 0, 0, 0, 0, 0, 49;

%e ...

%Y Cf. A051731, A127733, A001157.

%K nonn,tabl

%O 1,3

%A _Gary W. Adamson_, Nov 02 2007