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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013827 3^(5*n+2). 2
9, 2187, 531441, 129140163, 31381059609, 7625597484987, 1853020188851841, 450283905890997363, 109418989131512359209, 26588814358957503287787, 6461081889226673298932241, 1570042899082081611640534563 (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 (243).

FORMULA

a(n)=243*a(n-1), n>0 ; a(0)=9 . G.f.: 9/(1-243*x). a(n)=3*A013826(n) . - Philippe Deléham, Nov 26 2008

PROG

(MAGMA) [3^(5*n+2): n in [0..15]]; // Vincenzo Librandi, Jul 07 2011

(PARI) a(n)=3^(5*n+2) \\ Charles R Greathouse IV, Jul 11 2016

CROSSREFS

Sequence in context: A162091 A172959 A250915 * A058428 A278914 A069704

Adjacent sequences:  A013824 A013825 A013826 * A013828 A013829 A013830

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 April 23 01:31 EDT 2017. Contains 285313 sequences.