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%I #15 Sep 08 2022 08:45:05
%S 1,1,24,10888869450418352160768000000
%N a(n) = (n^n)!.
%C Next term: 857817775342842654119...0 (507 digits). - _Vladimir Joseph Stephan Orlovsky_, Dec 03 2008
%F a(n) = A000142(A000312(n)). - _Michel Marcus_, Jan 12 2015
%e a(0) = (0^0)! = 1! = 1;
%e a(1) = (1^1)! = 1! = 1;
%e a(2) = (2^2)! = 4! = 24;
%e a(3) = (3^3)! = 27! = 10888869450418352160768000000.
%t a[n_]:=(n^n)!; (* _Vladimir Joseph Stephan Orlovsky_, Dec 03 2008 *)
%o (Magma) [Factorial(n^n): n in [0..5]]; // _Vincenzo Librandi_, Jan 20 2015
%Y Cf. A000142, A000312, A068740, A068742.
%K nonn
%O 0,3
%A _Henry Bottomley_, Feb 26 2002