%I #5 Jan 21 2019 19:01:55
%S 1,8,435,227920,1278098745,82575323184816,65027115220581214701,
%T 650673256738362079479972000,85317908524399246240116500743559745,
%U 150076667939221169116862871933576383129271760
%N Binomial( 2*binomial(2*n,n-1),n-1).
%p seq(binomial(2*binomial(2*n,n-1),n-1),n=1..10);
%t Table[Binomial[2Binomial[2n,n-1],n-1],{n,10}] (* _Harvey P. Dale_, Jul 08 2014 *)
%K nonn
%O 0,2
%A _Jorge Coveiro_, Dec 25 2004