OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 1208, 0, 0, 0, -1).
FORMULA
G.f.: -(x^7-18*x^6+55*x^5-183*x^4-604*x^3-183*x^2-55*x-18) / (x^8-1208*x^4+1). - Colin Barker, Nov 09 2013
MATHEMATICA
Numerator[Convergents[Sqrt[335], 30]] (* Vincenzo Librandi, Nov 05 2013 *)
LinearRecurrence[{0, 0, 0, 1208, 0, 0, 0, -1}, {18, 55, 183, 604, 21927, 66385, 221082, 729631}, 30] (* Harvey P. Dale, Mar 03 2020 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 09 2013
STATUS
approved