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%I #4 Mar 30 2012 18:56:14
%S 1,3,9,27,79,231,672,1951,5662,16439,47776,139025,405110,1182107,
%T 3454035,10105373,29600389,86800887,254797772,748646741,2201587214,
%U 6479524339,19084115993,56246912653,165882843095,489509315203
%N a(n) = T(n,n) + T(n,n+1) + ... + T(n,2n), T given by A027113.
%K nonn
%O 0,2
%A _Clark Kimberling_