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A031851 Period of continued fraction for sqrt(n) contains exactly 83 ones. 0
45151, 64375, 77059, 95371, 103375, 105403, 111619, 135679, 165911, 178003, 206579, 208079, 220183, 226255, 235279, 237771, 242719, 245311, 245699, 259319, 263887, 267448, 295399, 295447, 306448, 308339, 309283, 320379, 320407, 332279 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

cf83Q[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Count[ContinuedFraction[s][[2]], 1]==83]; [Select[Range[350000], cf83Q] (* Harvey P. Dale, Dec 31 2013 *)

CROSSREFS

Sequence in context: A295467 A158931 A162894 * A185927 A287378 A163816

Adjacent sequences:  A031848 A031849 A031850 * A031852 A031853 A031854

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified November 28 04:31 EST 2021. Contains 349400 sequences. (Running on oeis4.)