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

1, 6, 181440, 1814811575069725360128000000

Offset

0,2

Comments

Next term is too large to include.

Links

Table of n, a(n) for n=0..3.

Formula

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

Example

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

Mathematica

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

Prog

(PARI) a(n) = (3^n)! / n!;
vector(5, n, a(n-1))
(Magma) [Factorial(3^n) / Factorial(n): n in [0..6]]; // Vincenzo Librandi, Sep 15 2015

Crossrefs

Cf. A079288, A000142.

Sequence in context: A076909 A172864 A352022 * A297534 A183765 A358385

Adjacent sequences: A262184 A262185 A262186 * A262188 A262189 A262190

Keyword

nonn

Author

Altug Alkan, Sep 14 2015

Status

approved