A030857 [ exp(7/20)*n! ].

1, 2, 8, 34, 170, 1021, 7152, 57216, 514951, 5149512, 56644635, 679735626, 8836563141, 123711883983, 1855678259755, 29690852156095, 504744486653631, 9085400759765361, 172622614435541861, 3452452288710837226

Offset

1,2

Links

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

Mathematica

Floor[Exp[7/20]Range[20]!] (* Harvey P. Dale, Jun 06 2018 *)

Crossrefs

Sequence in context: A109972 A019023 A343523 * A030894 A030919 A030944

Adjacent sequences: A030854 A030855 A030856 * A030858 A030859 A030860

Keyword

nonn

Author

Simon Plouffe

Status

approved