OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,2079362,0,0,0,0,0,0,0,0,0,-1).
FORMULA
G.f.: -(x^19 -22*x^18 +155*x^17 -332*x^16 +487*x^15 -2280*x^14 +9607*x^13 -40708*x^12 +50315*x^11 -141338*x^10 -1039681*x^9 -141338*x^8 -50315*x^7 -40708*x^6 -9607*x^5 -2280*x^4 -487*x^3 -332*x^2 -155*x -22) / ((x^10 -1442*x^5 +1)*(x^10 +1442*x^5 +1)). - Colin Barker, Nov 27 2013
MATHEMATICA
Numerator/@Convergents[Sqrt[490], 30] (* Harvey P. Dale, May 05 2011 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy,less
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 27 2013
STATUS
approved