%I #10 Jun 05 2023 21:20:37

%S 1,3,1,5,5,1,5,11,7,1,5,11,19,9,1,5,11,19,29,11,1,5,11,19,29,41,13,1,

%T 5,11,19,29,41,55,15,1,5,11,19,29,41,55,71,17,1,5,11,19,29,41,55,71,

%U 89,19,1,5,11,19,29,41,55,71,89,109,21,1,5,11,19,29,41,55,71,89,109,131,23,1

%N Triangle read by rows: A000012 * A128229^2 as infinite lower triangular matrices.

%C Row sums = A006527: (1, 4, 11, 24, 45, 76, ...).

%e First few rows of the triangle:

%e 1;

%e 3, 1;

%e 5, 5, 1;

%e 5, 11, 7, 1;

%e 5, 11, 19, 9, 1;

%e 5, 11, 19, 29, 11, 1;

%e 5, 11, 19, 29, 41, 13, 1;

%e 5, 11, 19, 29, 41, 55, 15, 1;

%e ...

%Y Cf. A006527, A128229.

%K nonn,tabl

%O 1,2

%A _Gary W. Adamson_, Nov 21 2007

%E a(19), a(20) corrected and more terms from _Georg Fischer_, Jun 05 2023