OFFSET
4,1
LINKS
R. H. Hardin, Table of n, a(n) for n=4..500
Index entries for linear recurrences with constant coefficients, signature (2,0,-1,0,1).
FORMULA
G.f.: x^4*(14-3*x-5*x^2+4*x^3+8*x^4)/(1-2*x+x^3-x^5). - R. J. Mathar, Nov 30 2011
MATHEMATICA
LinearRecurrence[{2, 0, -1, 0, 1}, {14, 25, 45, 80, 143}, 50] (* G. C. Greubel, Sep 19 2017 *)
PROG
(PARI) x='x+O('x^50); Vec(x^4*(14-3*x-5*x^2+4*x^3+8*x^4)/(1-2*x+x^3-x^5)) \\ G. C. Greubel, Sep 19 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 14 2009
STATUS
approved