OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,11562,0,0,0,0,0,-1).
FORMULA
G.f.: -(x^10-3*x^9+7*x^8-31*x^7+69*x^6-238*x^5-69*x^4-31*x^3-7*x^2-3*x-1) / (x^12-11562*x^6+1). - Colin Barker, Dec 02 2013
a(n) = 11562*a(n-6) - a(n-12) for n>11. - Vincenzo Librandi, Jan 15 2014
MATHEMATICA
Denominator[Convergents[Sqrt[590], 30]] (* Vincenzo Librandi, Jan 15 2014 *)
LinearRecurrence[{0, 0, 0, 0, 0, 11562, 0, 0, 0, 0, 0, -1}, {1, 3, 7, 31, 69, 238, 11493, 34717, 80927, 358425, 797777, 2751756}, 30] (* Harvey P. Dale, May 15 2022 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 02 2013
STATUS
approved