OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,1202,0,-1).
FORMULA
G.f.: -(x^2-20*x-1) / (x^4-1202*x^2+1). - Colin Barker, Dec 22 2013
MATHEMATICA
Denominator[Convergents[Sqrt[903], 30]] (* Vincenzo Librandi, Jan 28 2014 *)
LinearRecurrence[{0, 1202, 0, -1}, {1, 20, 1201, 24040}, 20] (* Harvey P. Dale, Oct 14 2019 *)
CROSSREFS
KEYWORD
nonn,frac,easy,less
AUTHOR
EXTENSIONS
Additional term from Colin Barker, Dec 22 2013
STATUS
approved