%I #4 Mar 30 2012 18:56:14
%S 1,4,11,31,87,246,700,2003,5758,16616,48102,139625,406214,1184138,
%T 3457771,10112245,29613029,86824136,254840534,748725393,2201731878,
%U 6479790418,19084605389,56247812793,165884498711,489512360356
%N a(n) = T(n,0) + T(n,1) + ... + T(n,2n), T given by A027113.
%K nonn
%O 0,2
%A _Clark Kimberling_