|
%I #7 Apr 02 2022 10:10:56
%S 1,2,1,4,0,1,7,2,0,1,11,2,0,0,1,18,4,2,0,0,1,26,4,2,0,0,0,1,39,9,2,2,
%T 0,0,0,1,55,9,4,2,0,0,0,0,1,79,16,4,2,2,0,0,0,0,1,106,18,6,2,2,0,0,0,
%U 0,0,1,150,29,9,4,2,2,0,0,0,0,0,1
%N Triangle read by rows, A026794^2.
%C Row sums = A137630: (1, 3, 5, 10, 14, 25, 33, 53, 71, 104, ...).
%C Left border = A137631: (1, 2, 4, 7, 11, 18, 26, 39, 55, 79, ...).
%F Square of the partition triangle.
%e First few rows of the triangle:
%e 1;
%e 2, 1;
%e 4, 0, 1;
%e 7, 2, 0, 1;
%e 11, 2, 0, 0, 1;
%e 18, 4, 2, 0, 0, 1;
%e 26, 4, 2, 0, 0, 0, 1;
%e 39, 9, 2, 2, 0, 0, 0, 1;
%e ...
%Y Cf. A026794, A137630, A137631.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_, Jan 31 2008
|
