|
%I #7 Aug 12 2022 15:13:52
%S 1,2,1,3,1,1,2,2,1,1,5,1,1,1,1,1,4,2,1,1,1,7,1,1,1,1,1,1,2,2,2,2,1,1,
%T 1,1,3,3,3,1,1,1,1,1,1,1,6,2,2,2,1,1,1,1,1,11,1,1,1,1,1,1,1,1,1,1,1,1,
%U 4,4,2,2,1,1,1,1,1,1
%N Triangle read by rows, A140581 * A000012.
%C Left column = A014963: (1, 2, 3, 2, 5, 1, 7, 2, 3, 1, 11, ...).
%C Row sums = A140584: (1, 3, 5, 6, 9, 10, 13, ...).
%F Triangle read by rows, A140581 * A000012; where A000012 = the infinite lower triangular matrix with all 1's and the rest zeros: [1; 1,1; 1,1,1; ...].
%e First few rows of the triangle:
%e 1;
%e 2, 1;
%e 3, 1, 1;
%e 2, 2, 1, 1;
%e 5, 1, 1, 1, 1;
%e 1, 4, 2, 1, 1, 1;
%e 7, 1, 1, 1, 1, 1, 1;
%e 2, 2, 2, 2, 1, 1, 1, 1;
%e 3, 3, 3, 1, 1, 1, 1, 1, 1;
%e 1, 6, 2, 2, 2, 1, 1, 1, 1, 1;
%e ...
%Y Cf. A014963, A140584, A140581.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_ and _Mats Granvik_, May 17 2008
|
