login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013738 a(n) = 6^(3*n + 1). 2
6, 1296, 279936, 60466176, 13060694016, 2821109907456, 609359740010496, 131621703842267136, 28430288029929701376, 6140942214464815497216, 1326443518324400147398656, 286511799958070431838109696 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
Tanya Khovanova, Recursive Sequences
FORMULA
From Philippe Deléham, Nov 25 2008: (Start)
a(n) = 216*a(n-1); a(0)=6.
G.f.: 6/(1-216*x). (End)
MAPLE
seq(6^(3*n+1), n=0..11); # Nathaniel Johnston, Jun 26 2011
MATHEMATICA
6^(3*Range[0, 20]+1) (* or *) NestList[216#&, 6, 20] (* Harvey P. Dale, Jan 01 2012 *)
PROG
(Magma) [6^(3*n+1): n in [0..20]]; // Vincenzo Librandi, May 25 2011
(PARI) a(n)=6^(3*n+1) \\ Charles R Greathouse IV, Jul 11 2016
CROSSREFS
Cf. A013739.
Sequence in context: A264103 A202381 A067510 * A209590 A076781 A055306
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 23 17:49 EDT 2024. Contains 374553 sequences. (Running on oeis4.)