login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A129949 a(n) = n! - binomial(n,3). 0
1, 1, 2, 5, 20, 110, 700, 5005, 40264, 362796, 3628680, 39916635, 479001380, 6227020514, 87178290836, 1307674367545, 20922789887440, 355687428095320, 6402373705727184, 121645100408831031, 2432902008176638860, 51090942171709438670, 1124000727777607678460 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..22.

MATHEMATICA

Table[n! - Binomial[n, 3], {n, 20}] (* David Callan, May 08 2016 *)

CROSSREFS

Sequence in context: A201224 A305922 A019536 * A127065 A168357 A052850

Adjacent sequences:  A129946 A129947 A129948 * A129950 A129951 A129952

KEYWORD

nonn,easy

AUTHOR

Roger L. Bagula, Jun 10 2007

EXTENSIONS

Edited by Joerg Arndt, Aug 03 2020

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 September 24 03:26 EDT 2021. Contains 347623 sequences. (Running on oeis4.)