%I #4 Mar 30 2012 18:56:14
%S 1,2,6,19,55,161,469,1362,3954,11483,33379,97146,283114,826214,
%T 2414366,7064217,20693797,60686847,178152055,523473326,1539479414,
%U 4531059224,13345835288,39335816471,116012701523,342356498884
%N T(n,n) + T(n,n+1) + ... + T(n,2n), T given by A027082.
%K nonn
%O 0,2
%A _Clark Kimberling_