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A031801
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Period of continued fraction for sqrt(n) contains exactly 33 ones.
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0
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19519, 20191, 22987, 24839, 27511, 35551, 37211, 41251, 41347, 44511, 44536, 49187, 53519, 54071, 58847, 61795, 62263, 62291, 62879, 68579, 68632, 69751, 70555, 74227, 78883, 81171, 81279, 82575, 83707, 83752, 84527, 87163, 88303, 88479, 91015, 92407
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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cf33Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Count[ ContinuedFraction[ s][[2]], 1]]==33]; Select[Range[10^5], cf33Q] (* Harvey P. Dale, Sep 21 2018 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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