%I

%S 1,7,30,148,610,2823,11690,52952,221094,992190,4173708,18642456,

%T 78906516,351537963,1495497690,6652572976,28420125190,126308309058,

%U 541492971140,2405203008440,10341957297084,45920564571398,197952999374468

%N a(n) = T(2n-1,n-2), T given by A026648.

%K nonn

%O 2,2

%A _Clark Kimberling_