OFFSET
0,3
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, 0, 0, 0, 0, 0, 0, 938448, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^22 -x^21 +4*x^20 -5*x^19 +9*x^18 -23*x^17 +676*x^16 -1375*x^15 +2051*x^14 -3426*x^13 +12329*x^12 -15755*x^11 -12329*x^10 -3426*x^9 -2051*x^8 -1375*x^7 -676*x^6 -23*x^5 -9*x^4 -5*x^3 -4*x^2 -x -1) / (x^24 -938448*x^12 +1). - Colin Barker, Dec 22 2013
a(n) = 938448*a(n-12) - a(n-24). - Wesley Ivan Hurt, Apr 11 2022
MATHEMATICA
Denominator[Convergents[Sqrt[887], 30]] (* Vincenzo Librandi, Jan 27 2014 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 22 2013
STATUS
approved