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
From Philippe Deléham, Nov 26 2008: (Start)
a(n) = 243*a(n-1), n > 0; a(0)=9.
G.f.: 9/(1-243*x).
a(n) = 3*A013826(n). (End)
MATHEMATICA
3^(5*Range[0, 20]+2) (* or *) NestList[243#&, 9, 20] (* Harvey P. Dale, Feb 05 2020 *)
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
KEYWORD
nonn,easy
AUTHOR
STATUS
approved