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A020416 Numbers n such that continued fraction for sqrt(n) has period 77. 0
5857, 5861, 6101, 7001, 7141, 7834, 8314, 8429, 8989, 10289, 10789, 11041, 11101, 11482, 11581, 11626, 12377, 13217, 13309, 13997, 14261, 16433, 16949, 17386, 20521, 21178, 21277, 21785, 22013, 22753, 27877, 28493, 28793, 29285, 29333, 29341, 30169 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..37.

MATHEMATICA

cf77Q[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Length[ContinuedFraction[s][[2]]]==77]; Select[Range[31000], cf77Q] (* Harvey P. Dale, Aug 04 2013 *)

CROSSREFS

Sequence in context: A031830 A297660 A219008 * A076808 A272324 A104927

Adjacent sequences:  A020413 A020414 A020415 * A020417 A020418 A020419

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified August 18 13:25 EDT 2019. Contains 326100 sequences. (Running on oeis4.)