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%I #8 Mar 26 2022 10:21:10

%S 1,1,1,1,2,1,1,2,2,1,1,3,3,2,1,1,2,3,3,2,1,1,3,4,4,3,2,1,1,3,4,4,4,3,

%T 2,1,1,3,4,5,5,4,3,2,1,1,2,4,5,5,5,4,3,2,1

%N A134541 * A000012.

%C Row sums = A002088: (1, 2, 4, 6, 10, 12, 18, 22, ...).

%C A134542 * [1,2,3,...] = A015631: (1, 3, 8, 15, 29, 42, ...).

%F A134541 * A000012 as infinite lower triangular matrices.

%F Triangle read by rows, partial sums of A134541 terms starting from the right.

%e First few rows of the triangle:

%e 1;

%e 1, 1;

%e 1, 2, 1;

%e 1, 2, 2, 1;

%e 1, 3, 3, 2, 1;

%e 1, 2, 3, 3, 2, 1;

%e 1, 3, 4, 4, 3, 2, 1;

%e 1, 3, 4, 4, 4, 3, 2, 1;

%e 1, 3, 4, 5, 5, 4, 3, 2, 1;

%e 1, 2, 4, 5, 5, 5, 4, 3, 2, 1;

%e ...

%Y Cf. A134541, A002088, A015631.

%K nonn,tabl,more

%O 1,5

%A _Gary W. Adamson_, Oct 31 2007