A262187 a(n) = (3^n)! / n!.

1, 6, 181440, 1814811575069725360128000000

Offset: 0

Author

Altug Alkan, Sep 14 2015

Keywords

• nonn

Comments

Next term is too large to include.

Examples

			For n = 2, a(n) = (3^2)! / (2)! = 181440.
		

Crossrefs

Cf. A079288, A000142.

Programs

Magma

[Factorial(3^n) / Factorial(n): n in [0..6]]; // Vincenzo Librandi, Sep 15 2015

Mathematica

Table[(3^n)! / n!, {n, 0, 6}] (* Vincenzo Librandi, Sep 15 2015 *)

PARI

a(n) = (3^n)! / n!;
vector(5, n, a(n-1))

Formula

a(n) = A079288(n)/A000142(n).