OFFSET
0,1
LINKS
Colin Barker, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (1,64).
FORMULA
a(n) = ((1 + sqrt(257))/2)^n + ((1 - sqrt(257))/2)^n.
G.f.: (2-x) / (1-x-64*x^2). - Colin Barker, Feb 22 2016
PROG
(PARI) a(n) = my(w = quadgen(257)); w^n + (1 - w)^n;
(PARI) Vec((2-x)/(1-x-64*x^2) + O(x^30)) \\ Colin Barker, Feb 22 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Helmut Schmiedel (a.positiv(AT)web.de), Apr 03 2003
EXTENSIONS
More terms from Michel Marcus, Aug 24 2013
STATUS
approved