A030806 a(n) = floor(exp(1/24)*n!).

1, 2, 6, 25, 125, 750, 5254, 42035, 378319, 3783194, 41615136, 499381635, 6491961263, 90887457690, 1363311865354, 21812989845674, 370820827376472, 6674774892776503, 126820722962753557, 2536414459255071150

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Mathematica

Floor[Exp[1/24]Range[20]!] (* Harvey P. Dale, Jul 27 2025 *)

Prog

(PARI) a(n) = floor(exp(1/24)*n!); \\ Jinyuan Wang, Apr 08 2020

Crossrefs

Sequence in context: A074010 A352660 A349088 * A030828 A030839 A030851

Adjacent sequences: A030803 A030804 A030805 * A030807 A030808 A030809

Keyword

nonn,easy

Author

Simon Plouffe

Status

approved