%I
%S 1,0,2,3,0,6,0,4,0,8,15,0,0,0,20,0,6,0,0,0,12,35,0,0,0,0,0,42,0,
%T 8,0,16,0,0,0,32,9,0,36,0,0,0,0,0,54,0,30,0,0,0,0,0,0,0,40,99,0,
%U 0,0,0,0,0,0,0,0,110,0,12,0,24,0,24,0,0,0,0,0,48
%N Triangle read by rows: matrix product A127466*A054525.
%C The row sums are n, the index of the row.
%F T(n,k) = sum_{j=k..n} A127466(n,j) * A054525(j,k).
%F T(n,n) = A002618(n).
%e First few rows of the triangle are:
%e 1;
%e 0, 2;
%e 3, 0, 6;
%e 0, 4, 0, 8;
%e 15, 0, 0, 0, 20;
%e 0, 6, 0, 0, 0, 12;
%e 35, 0, 0, 0, 0, 0, 42;
%e ...
%p A127468 := proc(n,k)
%p add( A127466(n,j)*A054525(j,k),j=k..n) ;
%p end proc: # _R. J. Mathar_, Sep 06 2013
%Y Cf. A127466, A054525, A002618.
%K tabl,sign
%O 1,3
%A _Gary W. Adamson_, Jan 15 2007
