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

 

Logo

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A153647 a(n) = 3^n*(n + 2)!. 1
2, 18, 216, 3240, 58320, 1224720, 29393280, 793618560, 23808556800, 785682374400, 28284565478400, 1103098053657600, 46330118253619200, 2084855321412864000, 100073055427817472000, 5103725826818691072000, 275601194648209317888000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..300

MATHEMATICA

Table[3^n*(n + 2)!, {n, 0, 30}]

PROG

(MAGMA) [3^n*Factorial(n + 2): n in [0..20]]; // Vincenzo Librandi, Aug 24 2016

CROSSREFS

Sequence in context: A092882 A123855 A121407 * A052726 A217239 A279045

Adjacent sequences:  A153644 A153645 A153646 * A153648 A153649 A153650

KEYWORD

nonn

AUTHOR

Roger L. Bagula and Gary W. Adamson, Dec 30 2008

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 22 20:30 EDT 2018. Contains 315270 sequences. (Running on oeis4.)