OFFSET
1,2
LINKS
Bruce Nye, Table of n, a(n) for n = 1..1000
Index entries for linear recurrences with constant coefficients, signature (9,11,-10).
FORMULA
a(n) = +9*a(n-1) +11*a(n-2) -10*a(n-3). - Joerg Arndt, May 14 2011
a(n) = 10*a(n-1)+F(n) for n=odd and a(n) = 10*a(n-1)-F(n) for n=even, with a(0) = 0 and F(n) is the n-th Fibonacci number.
PROG
(PARI) Vec(x/(1-9*x-11*x^2+10*x^3)+O(x^20)) \\ Bruce Nye, Apr 10 2026
CROSSREFS
KEYWORD
nonn,easy,changed
AUTHOR
Mark Dols, Aug 31 2009
STATUS
approved