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Triangle T(n,k) read by rows. T(n,k) = A046643(A126988).
2

%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