OFFSET
3,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (2,3,-5,-2).
FORMULA
G.f.: x^3/((1-2*x)*(1-3*x^2-x^3)).
a(n) = 2^n - A065455(n).
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Len Smiley, Nov 26 2001
STATUS
approved