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A031826 Period of continued fraction for sqrt(n) contains exactly 58 ones. 0

%I

%S 4861,5086,5791,6022,6199,7177,7489,7492,7951,8061,9001,9343,9439,

%T 9748,9921,10334,10837,11149,11173,11677,12004,12361,12681,12897,

%U 13009,13259,13421,13619,13641,13759,13777,14143,14158,14317,14341,14353,14709,14797

%N Period of continued fraction for sqrt(n) contains exactly 58 ones.

%t cf58Q[n_]:=Module[{s=Sqrt[n]},If[IntegerQ[s],1,Count[ContinuedFraction[s][[2]],1]]==58]; Select[Range[15000],cf58Q] (* _Harvey P. Dale_, Mar 17 2015 *)

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified November 29 10:20 EST 2021. Contains 349416 sequences. (Running on oeis4.)