A372992 a(n) = (n!)!/((n-1)!)!.

1, 1, 2, 360, 861733891296165888000

Offset

0,3

Comments

a(5) has 177 digits.

Links

Table of n, a(n) for n=0..4.

Mathematica

a[0] = 1; a[n_] := a[n] = (n!)!/((n - 1)!)!;
Table[a[n], {n, 0, 6}]

Crossrefs

Cf. A000142.

Sequence in context: A325629 A362476 A062381 * A077350 A013506 A013512

Adjacent sequences: A372989 A372990 A372991 * A372993 A372994 A372995

Keyword

nonn

Author

Clark Kimberling, Jul 16 2024

Status

approved