OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,502,0,-1).
FORMULA
G.f.: -(x^2 - 10*x - 1) / (x^4 - 502*x^2 + 1). - Colin Barker, Dec 04 2013
MATHEMATICA
Denominator[Convergents[Sqrt[630], 30]] (* Vincenzo Librandi, Jan 16 2014 *)
LinearRecurrence[{0, 502, 0, -1}, {1, 10, 501, 5020}, 20] (* Harvey P. Dale, Sep 06 2021 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 04 2013
STATUS
approved