%I #5 Mar 23 2022 01:06:56
%S 1,1,1,1,0,2,1,1,0,1,1,0,0,0,2,1,1,2,0,0,2,1,0,0,0,0,0,2,1,1,0,1,0,0,
%T 0,1,1,0,2,0,0,0,0,0,3,1,1,0,0,2,0,0,0,0,2
%N A051731 * A133698.
%C Right border = A001227, the number of odd divisors of n.
%C Row sums = A133700: (1, 2, 3, 3, 3, 6, 3, 4, 6, 6, ...)
%F Inverse Mobius transform of A133698, as infinite lower triangular matrices.
%e First few rows of the triangle:
%e 1;
%e 1, 1;
%e 1, 0, 2;
%e 1, 1, 0, 1;
%e 1, 0, 0, 0, 2;
%e 1, 1, 2, 0, 0, 2;
%e 1, 0, 0, 0, 0, 0, 2;
%e 1, 1, 0, 1, 0, 0, 0, 1;
%e ...
%Y Cf. A051731, A133698, A133700.
%K nonn,tabl
%O 1,6
%A _Gary W. Adamson_, Sep 21 2007