OFFSET
0,2
LINKS
Cesar Bautista, Table of n, a(n) for n = 0..299
C. Bautista-Ramos and C. Guillen-Galvan, Fibonacci numbers of generalized Zykov sums, J. Integer Seq., 15 (2012), Article 12.7.8.
Index entries for linear recurrences with constant coefficients, signature (7,5,-1).
FORMULA
a(n) = 7*a(n-1) + 5*a(n-2) - a(n-3) with a(0)=1, a(1)=11, a(2)=81.
G.f.: (1+4*x-x^2)/(x^3-5*x^2-7*x+1).
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Cesar Bautista, Apr 04 2012
STATUS
approved