|
%I #5 Mar 27 2022 18:27:10
%S 1,2,1,4,2,1,4,4,2,1,6,4,4,2,1,6,6,4,4,2,1,8,6,6,4,4,2,1,8,8,6,6,4,4,
%T 2,1,10,8,8,6,6,4,4,2,1,10,10,8,8,6,6,4,4,2,1
%N A004736 + A128174 - I, I = Identity matrix.
%C Row sums = A047838: (1, 3, 7, 11, 17, 23, 31, 39, ...). The triangle is a companion to A135151.
%F A004736 + A128174 - I, where I = Identity matrix, A004736 = (1; 2,1; 3,2,1; ...) and A128174 = (1; 0,1; 1,0,1; 0,1,0,1; ...).
%e First few rows of the triangle:
%e 1;
%e 2, 1;
%e 4, 2, 1;
%e 4, 4, 2, 1;
%e 6, 4, 4, 2, 1;
%e 6, 6, 4, 4, 2, 1;
%e 8, 6, 6, 4, 4, 2, 1;
%e ...
%Y Cf. A135151, A047838, A004736, A128174.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_, Nov 21 2007
|
