%I

%S 1,19,220,2021,16246,119914,835080,5579147,36150820,228879616,

%T 1423367610,8727874180,52919787978,317969615146,1896431659490,

%U 11241964305405,66305996581006,389432443869294,2279159225280808

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

%K nonn

%O 4,2

%A _Clark Kimberling_