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%I #5 Mar 25 2022 00:36:30
%S 1,3,2,1,6,3,1,2,9,4,1,2,3,12,5,1,2,3,4,15,6,1,2,3,4,5,18,7,1,2,3,4,5,
%T 6,21,8,1,2,3,4,5,6,7,24,9,1,2,3,4,5,6,7,8,27,10
%N A002260 + A134082 - I as infinite lower triangular matrices; I = Identity matrix.
%C Row sums = A052905: (1, 5, 10, 16, 23, 31, 40, ...).
%e First few rows of the triangle:
%e 1;
%e 3, 2;
%e 1, 6, 3;
%e 1, 2, 9, 4;
%e 1, 2, 3, 12, 5;
%e 1, 2, 3, 4, 15, 6;
%e 1, 2, 3, 4, 5, 18, 7;
%e ...
%Y Cf. A002260, A134082, A052905.
%K nonn,tabl
%O 0,2
%A _Gary W. Adamson_, Oct 13 2007
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