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, 97684, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^18 -x^17 +2*x^16 -7*x^15 +9*x^14 -214*x^13 +223*x^12 -883*x^11 +1106*x^10 -1989*x^9 -1106*x^8 -883*x^7 -223*x^6 -214*x^5 -9*x^4 -7*x^3 -2*x^2 -x -1) / (x^20 -97684*x^10 +1). - Colin Barker, Nov 19 2013
a(n) = 97684*a(n-10) - a(n-20) for n>19. - Vincenzo Librandi, Jan 16 2014
MATHEMATICA
Denominator[Convergents[Sqrt[603], 30]] (* Harvey P. Dale, Mar 20 2013 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 19 2013
STATUS
approved