OFFSET
0,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,0,0,0,1,-1).
FORMULA
G.f.: (1 +4*x +x^4 +2*x^5)/(1 -x -x^8 +x^9). - G. C. Greubel, Apr 30 2018
MATHEMATICA
LinearRecurrence[{1, 0, 0, 0, 0, 0, 0, 1, -1}, {1, 5, 5, 5, 6, 8, 8, 8, 9}, 80] (* Harvey P. Dale, Oct 04 2014 *)
CoefficientList[Series[(1+4*x+x^4+2*x^5)/(1-x-x^8+x^9), {x, 0, 50}], x] (* G. C. Greubel, Apr 30 2018 *)
PROG
(Magma) m:=50; R<x>:=PowerSeriesRing(Rationals(), m); Coefficients(R!((1 +4*x +x^4 +2*x^5)/(1-x-x^8+x^9))); // G. C. Greubel, Apr 30 2018
(PARI) x='x + O('x^50); Vec((1 +4*x +x^4 +2*x^5)/(1-x-x^8+x^9)) \\ G. C. Greubel, Apr 30 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Philippe Deléham, Apr 06 2007
STATUS
approved