A129569 - OEIS

%I #4 Feb 20 2022 01:23:10

%S 1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,0,1,0,1,0,0,1,0,1,0,1,0,1,0,1,0,1,

%T 0,1,0,0,0,0,1,0,1,0,1,0,0,0,1,0,1,0,1,0,1

%N A129360 * A128174.

%C Row sums = A055034: (1, 1, 1, 2, 2, 2, 3, 4, 3, 4, ...).

%F A129360 * A128174 as infinite lower triangular matrices.

%e First few rows of the triangle:

%e   1;

%e   0, 1;

%e   0, 0, 1;

%e   0, 1, 0, 1;

%e   0, 0, 1, 0, 1;

%e   0, 0, 0, 1, 0, 1;

%e   0, 0, 1, 0, 1, 0, 1;

%e   ...

%Y Cf. A129360, A128174, A055034.

%K nonn,tabl

%O 1,1

%A _Gary W. Adamson_, Apr 22 2007