A068741 a(n) = (n^n)!.

1, 1, 24, 10888869450418352160768000000

Offset: 0

Author

Henry Bottomley, Feb 26 2002

Keywords

• nonn

Comments

Next term: 857817775342842654119...0 (507 digits). - Vladimir Joseph Stephan Orlovsky, Dec 03 2008

Examples

			a(0) = (0^0)! = 1! = 1;
a(1) = (1^1)! = 1! = 1;
a(2) = (2^2)! = 4! = 24;
a(3) = (3^3)! = 27! = 10888869450418352160768000000.
		

Crossrefs

Cf. A000142, A000312, A068740, A068742.

Programs

Magma

[Factorial(n^n): n in [0..5]]; // Vincenzo Librandi, Jan 20 2015

Mathematica

a[n_]:=(n^n)!; (* Vladimir Joseph Stephan Orlovsky, Dec 03 2008 *)

Formula

a(n) = A000142(A000312(n)). - Michel Marcus, Jan 12 2015