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A042070 Numerators of continued fraction convergents to sqrt(559). 2
23, 24, 47, 71, 331, 5036, 5367, 10403, 46979, 57382, 161743, 219125, 1038243, 1257368, 2295611, 35691533, 145061743, 180753276, 325815019, 506568295, 23627956589, 24134524884, 47762481473, 71897006357 (list; graph; refs; listen; history; text; internal format)
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1013136590, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

FORMULA

a(n) = 1013136590*a(n-20) - a(n-40) for n>39. [Bruno Berselli, Nov 15 2013]

MATHEMATICA

Numerator[Convergents[Sqrt[559], 30]] (* Vincenzo Librandi, Nov 15 2013 *)

CROSSREFS

Cf. A042071.

Sequence in context: A022393 A042068 A042066 * A042072 A042064 A042062

Adjacent sequences:  A042067 A042068 A042069 * A042071 A042072 A042073

KEYWORD

nonn,cofr,frac,easy,less

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 18 12:10 EDT 2019. Contains 321283 sequences. (Running on oeis4.)