%I #9 Oct 18 2019 04:03:57
%S 1,8,41,272,1168,7428,30302,189808,759101,4724160,18728841,116207424,
%T 458829051,2842936320,11203933255,69378730880,273211969075,
%U 1691519468760,6660034471595,41235710124400,162381981186970,1005560117623204,3961069262796800,24534901740913872
%N a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026386.
%K nonn
%O 2,2
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Oct 17 2019