OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (6,-5).
FORMULA
a(n) = 5*a(n-1)-4.
a(n) = 6*a(n-1)-5*a(n-2).
G.f.: (3-7*x)/((1-x)*(1-5*x)). - Bruno Berselli, Nov 04 2011
PROG
(MAGMA) [2*5^n+1: n in [0..30]];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Nov 04 2011
STATUS
approved