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, 0, 0, 0, 0, 1030190, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^18 -2*x^17 +3*x^16 -14*x^15 +31*x^14 -572*x^13 +1175*x^12 -5272*x^11 +6447*x^10 -18166*x^9 -6447*x^8 -5272*x^7 -1175*x^6 -572*x^5 -31*x^4 -14*x^3 -3*x^2 -2*x -1) / (x^20 -1030190*x^10 +1). - Colin Barker, Dec 18 2013
MATHEMATICA
Denominator[Convergents[Sqrt[804], 30]] (* Vincenzo Librandi, Jan 24 2014 *)
LinearRecurrence[{0, 0, 0, 0, 0, 0, 0, 0, 0, 1030190, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1}, {1, 2, 3, 14, 31, 572, 1175, 5272, 6447, 18166, 1023743, 2065652, 3089395, 14423232, 31935859, 589268694, 1210473247, 5431161682, 6641634929, 18714431540}, 30] (* Harvey P. Dale, Nov 16 2020 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 18 2013
STATUS
approved