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A031827 Period of continued fraction for sqrt(n) contains exactly 59 ones. 0
35959, 47239, 64519, 78547, 83224, 84019, 86227, 90119, 90799, 91999, 92335, 92583, 95951, 99415, 125095, 125291, 126451, 135875, 136144, 137171, 140215, 144232, 146771, 146971, 154963, 173227, 182771, 193543, 193855, 194035, 196547, 198211 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..32.

MATHEMATICA

cf59Q[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Count[ContinuedFraction[s][[2]], 1]==59]; Select[Range[200000], cf59Q] (* Harvey P. Dale, Mar 16 2013 *)

CROSSREFS

Sequence in context: A216065 A236201 A034605 * A097694 A209956 A256365

Adjacent sequences:  A031824 A031825 A031826 * A031828 A031829 A031830

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 28 04:43 EDT 2021. Contains 348313 sequences. (Running on oeis4.)