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%I #4 Feb 20 2022 14:49:15

%S 1,5,2,12,4,3,22,6,5,4,35,8,7,6,5,51,10,9,8,7,6,70,12,11,10,9,8,7,92,

%T 14,13,12,11,10,9,8,117,16,15,14,13,12,11,10,9,145,18,17,16,15,14,13,

%U 12,11,10

%N A051340 * A130296.

%C Row sums = A003215: (1, 7, 19, 37, 61, 91, ...).

%C Left border = A000326: (1, 5, 12, 22, 35, ...).

%C A130299 = A130296 * A051340.

%F A051340 * A130296 as infinite lower triangular matrices.

%e First few rows of the triangle:

%e 1;

%e 5, 2;

%e 12, 4, 3;

%e 22, 6, 5, 4;

%e 35, 8, 7, 6, 5;

%e 51, 10, 9, 8, 7, 6;

%e 70, 12, 11, 10, 9, 8, 7;

%e ...

%Y Cf. A051340, A130296, A003215, A000326.

%K nonn,tabl

%O 1,2

%A _Gary W. Adamson_, May 20 2007