A129572 - OEIS

%I #4 Feb 20 2022 01:24:23

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

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

%N A129372 * A097806.

%C Row sums = A086374: (1, 2, 3, 2, 3, 4, 3, 2, 5, 4, ...). A129573 = A097806 * A129372.

%F A129372 * A097806 as infinite lower triangular matrices.

%e First few rows of the triangle:

%e   1;

%e   1, 1;

%e   1, 1, 1;

%e   0, 0, 1, 1;

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

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

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

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

%e   ...

%Y Cf. A129372, A097806, A086374, A129573.

%K nonn,tabl

%O 1,1

%A _Gary W. Adamson_, Apr 22 2007