OFFSET
2,1
LINKS
R. P. Stanley, Problem 11348, Amer. Math. Monthly, 117 (2010), 87-88.
Index entries for linear recurrences with constant coefficients, signature (0,5,5,0,-25).
FORMULA
a(n) = 5*a(n-2)+5*a(n-3)-25*a(n-5). G.f.: -5*x^2*(x^4+5*x^3-x-1) / ((5*x^2-1)*(5*x^3-1)). - Colin Barker, Jul 26 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Dec 30 2009
STATUS
approved