|
%I #4 Apr 04 2012 18:47:26
%S 1,1,1,1,0,2,1,2,0,2,1,0,0,0,4,1,3,6,0,0,2,1,0,0,0,0,0,6,1,4,0,8,0,0,
%T 0,4,1,0,12,0,0,0,0,0,6,1,5,0,0,20,0,0,0,0,4,1,0,0,0,0,0,0,0,0,0,10,1,
%U 6,20,20,0,12,0,0,0,0,0,4,1,0,0,0,0,0,0,0,0,0,0,0,12
%N Triangle read by rows, A156348 * A130207
%C Row sums = A156834: (1, 2, 3, 5, 5, 12, 7, 17, 19, 30, 11,...).
%F Triangle read by rows, A156348 * A130207, where A130207 = an infinite lower
%F triangular matrix with A000010 as the main diagonal and the rest zeros.
%e First few rows of the triangle =
%e 1;
%e 1, 1;
%e 1, 0, 2;
%e 1, 2, 0, 2;
%e 1, 0, 0, 0, 4;
%e 1, 3, 6, 0, 0, 2;
%e 1, 0, 0, 0, 0, 0, 6;
%e 1, 4, 0, 8, 0, 0, 0, 4;
%e 1, 0, 12, 0, 0, 0, 0, 0, 6;
%e 1, 5, 0, 0, 20, 0, 0, 0, 0, 4;
%e 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10;
%e 1, 6, 20, 20, 0, 12, 0, 0, 0, 0, 0, 4;
%e 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12;
%e 1, 7, 0, 0, 0, 0, 42, 0, 0, 0, 0, 0, 0, 6;
%e ...
%Y Cf. A156348, A130207, A156834, A000010
%K nonn,tabl
%O 1,6
%A _Gary W. Adamson_ & _Mats Granvik_, Feb 16 2009
|
