OFFSET
0,1
COMMENTS
Subsequence of A000069, the odious numbers. - Reinhard Zumkeller, Aug 26 2007
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..500
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (4).
FORMULA
From Philippe Deléham, Nov 23 2008: (Start)
a(n) = 4*a(n-1); a(0)=11.
G.f.: 11/(1-4*x). (End)
a(n) = 11*A000302(n). - Michel Marcus, Nov 13 2013
MAPLE
MATHEMATICA
11*4^Range[0, 100] (* Vladimir Joseph Stephan Orlovsky, Jun 09 2011 *)
NestList[4#&, 11, 30] (* Harvey P. Dale, Jun 19 2014 *)
PROG
(Magma) [11*4^n: n in [0..30]]; // Vincenzo Librandi, May 31 2011
(PARI) a(n)=11*4^n \\ Charles R Greathouse IV, Apr 18 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved