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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
OFFSET
0,1
LINKS
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
KEYWORD
nonn,cofr,frac,easy,less
AUTHOR
STATUS
approved