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A042721
Denominators of continued fraction convergents to sqrt(890).
2
1, 1, 5, 6, 353, 359, 1789, 2148, 126373, 128521, 640457, 768978, 45241181, 46010159, 229281817, 275291976, 16196216425, 16471508401, 82082250029, 98553758430, 5798200238969, 5896753997399, 29385216228565, 35281970225964, 2075739489334477, 2111021459560441
OFFSET
0,3
LINKS
FORMULA
G.f.: -(x^2-x-1)*(x^4+6*x^2+1) / (x^8-358*x^4+1). - Colin Barker, Dec 22 2013
MATHEMATICA
Denominator[Convergents[Sqrt[890], 30]] (* Vincenzo Librandi, Jan 27 2014 *)
LinearRecurrence[{0, 0, 0, 358, 0, 0, 0, -1}, {1, 1, 5, 6, 353, 359, 1789, 2148}, 40] (* Harvey P. Dale, Dec 28 2024 *)
CROSSREFS
Sequence in context: A042387 A007666 A064177 * A246307 A269588 A048658
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 22 2013
STATUS
approved