A030816 a(n) = floor(exp(13/23)*n!).

1, 3, 10, 42, 211, 1267, 8869, 70956, 638607, 6386072, 70246794, 842961535, 10958499963, 153418999484, 2301284992271, 36820559876346, 625949517897888, 11267091322161985, 214074735121077721, 4281494702421554427, 89911388750852642974, 1978050552518758145446

Offset

1,2

Links

Table of n, a(n) for n=1..22.

Mathematica

Floor[Exp[13/23] Range[20]!] (* Jinyuan Wang, Apr 08 2020 *)

Crossrefs

Sequence in context: A007552 A125274 A030903 * A030964 A263823 A030867

Adjacent sequences: A030813 A030814 A030815 * A030817 A030818 A030819

Keyword

nonn,easy

Author

Simon Plouffe

Status

approved