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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013779 3^(4n+3). 1
27, 2187, 177147, 14348907, 1162261467, 94143178827, 7625597484987, 617673396283947, 50031545098999707, 4052555153018976267, 328256967394537077627, 26588814358957503287787, 2153693963075557766310747 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (81).

FORMULA

a(n)=81*a(n-1), n>0 ; a(0)=27 . G.f.: 27/(1-81*x). [From Philippe Deléham, Nov 25 2008]

PROG

(MAGMA) [3^(4*n+3): n in [0..20]]; // Vincenzo Librandi, Jun 27 2011

CROSSREFS

Sequence in context: A211926 A017199 A223476 * A075081 A017307 A167725

Adjacent sequences:  A013776 A013777 A013778 * A013780 A013781 A013782

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

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 June 26 02:24 EDT 2017. Contains 288749 sequences.