%I #4 Mar 30 2012 18:56:53
%S 1,4,15,56,211,798,3030,11550,44193,169652,653158,2521038,9752516,
%T 37802636,146792136,570924940,2223730395,8672669484,33864089798,
%U 132372227670,517947357111,2028479976186,7950990968079,31189593428478
%N T(n,n+3), array T as in A047120.
%K nonn
%O 0,2
%A _Clark Kimberling_