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%I #5 Oct 26 2017 15:56:43
%S 1,2,576,373248000,2642908293365760000,
%T 629238322197897601351680000000000,
%U 12078744213598964456884373878200091017216000000000000
%N a(n) = ((2n)!)^n.
%F a(n) ~ 2^(n*(2*n+1)) * exp(1/24 - 2*n^2) * n^(n*(4*n+1)/2) * Pi^(n/2). - _Vaclav Kotesovec_, Oct 26 2017
%t Table[((2n)!)^(n), {n, 0, 10}]
%Y Cf. A000142, A001044, A000442, A036740, A134366, A134367, A134368, A134369, A134370, A134374, A134375.
%K nonn
%O 0,2
%A _Artur Jasinski_, Oct 22 2007
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