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%I #4 Feb 21 2022 00:20:06

%S 1,2,1,4,1,1,6,2,1,1,8,2,2,1,1,10,2,2,2,1,12,2,2,2,2,1,1,14,2,2,2,2,2,

%T 1,1,16,2,2,2,2,2,2,1,1

%N A129686 * A051340.

%C Row sums = A113127: (1, 3, 6, 10, 14, 18, 22, ...).

%F A129686 * A051340 as infinite lower triangular matrices.

%e First few rows of the triangle:

%e 1;

%e 2, 1;

%e 4, 1, 1;

%e 6, 2, 1, 1;

%e 8, 2, 2, 1, 1;

%e 10, 2, 2, 2, 1, 1;

%e ...

%Y Cf. A129686, A051340, A113127.

%K nonn,tabl

%O 0,2

%A _Gary W. Adamson_, Jun 10 2007