%I #13 May 06 2020 15:30:07
%S 1,2,15,134596,10872202353646160680764975
%N a(n) = binomial(n!,(n-1)!).
%t Table[Binomial[n!, (n-1)!], {n, 1, 7}] (* _Vaclav Kotesovec_, Nov 13 2014 *)
%Y Cf. A000142, A037293, A066526, A058077.
%K nonn
%O 1,2
%A _Labos Elemer_, Apr 01 2003
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