%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