OFFSET
0,1
COMMENTS
Additive digital root of a(n) = 8. - Miquel Cerda, Jul 03 2016
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..160
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (64).
FORMULA
a(n) = 64a(n-1), n>0. O.g.f.: 8/(1-64x). - R. J. Mathar, May 07 2008
From Ilya Gutkovskiy, Jul 03 2016: (Start)
E.g.f.: 8*exp(64*x).
MATHEMATICA
8^(2*Range[0, 20]+1) (* or *) NestList[64#&, 8, 20] (* Harvey P. Dale, Feb 27 2013 *)
PROG
(Magma) [8^(2*n+1): n in [0..20]]; // Vincenzo Librandi, May 25 2011
(PARI) x='x+O('x^99); Vec(8/(1-64*x)) \\ Altug Alkan, Jul 09 2016
(PARI) a(n)=8<<(3*n) \\ Charles R Greathouse IV, Jul 11 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved