%I #2 Mar 30 2012 18:53:10
%S 1,1,1,1,0,1,3,1,0,1,1,0,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,5,3,0,1,0,0,
%T 0,1,3,0,1,0,0,0,0,0,1,1,1,0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,1,3,1,
%U 3,1,0,1,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,1,0,0,0,0,0,0,1
%N Triangle T(n,k) read by rows. T(n,k) = A046643(A126988).
%C Numerator in fraction A181116/A181117. A051731=(A181116/A181117)*(A181116/A181117).
%e Triangle starts:
%e 1,
%e 1,1,
%e 1,0,1,
%e 3,1,0,1,
%e 1,0,0,0,1,
%e 1,1,1,0,0,1,
%e 1,0,0,0,0,0,1,
%e 5,3,0,1,0,0,0,1,
%e 3,0,1,0,0,0,0,0,1,
%e 1,1,0,0,1,0,0,0,0,1,
%e 1,0,0,0,0,0,0,0,0,0,1,
%e 3,1,3,1,0,1,0,0,0,0,0,1,
%e 1,0,0,0,0,0,0,0,0,0,0,0,1,
%e 1,1,0,0,0,0,1,0,0,0,0,0,0,1,
%e 1,0,1,0,1,0,0,0,0,0,0,0,0,0,1,
%Y Cf. A181117, A046643, A051731.
%K nonn,tabl
%O 1,7
%A _Mats Granvik_, Oct 04 2010