OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..500
Index entries for linear recurrences with constant coefficients, signature (0,-759,-2576,-759,0,-1).
FORMULA
G.f.: (1 + 506*x^2 + 1288*x^3 + 253*x^4)/(1 + 759*x^2 + 2576*x^3 + 759*x^4 + x^6). - G. C. Greubel, Jul 11 2021
MATHEMATICA
LinearRecurrence[{0, -759, -2576, -759, 0, -1}, {1, 0, -253, -1288, 191521, 1629320}, 31] (* G. C. Greubel, Jul 11 2021 *)
PROG
(Sage)
def A123013_list(prec):
P.<x> = PowerSeriesRing(ZZ, prec)
return P( (1+506*x^2+1288*x^3+253*x^4)/(1+759*x^2+2576*x^3+759*x^4 +x^6) ).list()
A123013_list(30) # G. C. Greubel, Jul 11 2021
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Nov 12 2006
STATUS
approved