%I

%S 1,6,31,156,784,3962,20173,103522,535294,2787700,14613710,77072816,

%T 408737760,2178631156,11666175215,62734622764,338660977020,

%U 1834690352066,9971834477972,54361287536706,297170702049966,1628670524735842

%N T(2n,n-1), T given by A026769.

%K nonn

%O 1,2

%A _Clark Kimberling_