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A031814 Period of continued fraction for sqrt(n) contains exactly 46 ones. 1
1726, 2011, 2566, 2629, 3046, 4006, 4327, 4609, 4873, 4918, 4924, 5179, 5398, 5686, 5769, 6007, 6271, 6316, 6337, 6676, 6691, 6814, 6973, 7027, 7429, 8161, 8251, 8377, 8409, 8542, 8599, 8869, 8977, 9011, 9136, 9304, 9441, 9484, 9993, 10186, 10462 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

cf46Q[n_]:=Module[{sr=Sqrt[n]}, If[IntegerQ[sr], 1, Count[ ContinuedFraction[ sr][[2]], 1]]==46]; Select[Range[11000], cf46Q] (* Harvey P. Dale, Mar 07 2014 *)

CROSSREFS

Sequence in context: A145648 A035867 A271045 * A020427 A232299 A280841

Adjacent sequences:  A031811 A031812 A031813 * A031815 A031816 A031817

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified June 15 04:47 EDT 2021. Contains 345043 sequences. (Running on oeis4.)