login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A030799 [ exp(1/2)*n! ]. 0
1, 3, 9, 39, 197, 1187, 8309, 66476, 598287, 5982879, 65811677, 789740126, 10266621646, 143732703044, 2155990545670, 34495848730735, 586429428422497, 10555729711604956, 200558864520494172, 4011177290409883459 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A278749 A208816 A130905 * A273396 A058105 A090012

Adjacent sequences:  A030796 A030797 A030798 * A030800 A030801 A030802

KEYWORD

nonn

AUTHOR

Simon Plouffe

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 20 05:17 EDT 2019. Contains 321344 sequences. (Running on oeis4.)