OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,4098,0,-1).
FORMULA
Define a(1)=1, a(2)=4511, a(3)=4098*a(1)+a(2), a(4)=4098*a(2)+a(1), then a(n)=4098*a(n-2)-a(n-4).
G.f.: x*(x+1)*(x^2+4510*x+1) / ((x^2-64*x-1)*(x^2+64*x-1)). [Colin Barker, Mar 06 2013]
MATHEMATICA
CoefficientList[Series[x(x+1)(x^2+4510x+1)/((x^2-64x-1)(x^2+64x-1)), {x, 0, 20}], x] (* or *) LinearRecurrence[{0, 4098, 0, -1}, {0, 1, 4511, 8609, 18486079}, 30] (* Harvey P. Dale, Jul 05 2022 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Pierre CAMI, Apr 22 2005
EXTENSIONS
a(10)-a(15) from Colin Barker, Mar 06 2013
STATUS
approved