OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (2,-2,-1).
PROG
(PARI) Vec(1/(1-2*x+2*x^2+x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2012
CROSSREFS
KEYWORD
sign,easy
AUTHOR
N. J. A. Sloane, Nov 17 2002
STATUS
approved