%I

%S 1,10,68,396,2136,11062,56070,281306,1406721,7042818,35401568,

%T 178975192,910933936,4669860386,24114746282,125416122430,656713729000,

%U 3460748531510,18345703137458,97782896293158,523786141723670

%N T(2n+1,n+4), T given by A026780.

%K nonn

%O 3,2

%A _Clark Kimberling_