OFFSET
0,2
LINKS
I. M. Gessel, Ji Li, Compositions and Fibonacci identities, J. Int. Seq. 16 (2013) 13.4.5
Index entries for linear recurrences with constant coefficients, signature (3,-1,0,-1)
MAPLE
MATHEMATICA
CoefficientList[Series[(1-x)^(-1)/(1-2x-x^2-x^3), {x, 0, 40}], x] (* or *) LinearRecurrence[{3, -1, 0, -1}, {1, 3, 8, 21}, 40] (* Harvey P. Dale, Nov 01 2016 *)
PROG
(PARI) Vec((1-x)^(-1)/(1-2*x-x^2-x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 17 2002
STATUS
approved