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A031725
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Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 47.
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1
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2211, 8840, 19887, 35352, 55235, 79536, 108255, 141392, 178947, 220920, 267311, 318120, 373347, 432992, 497055, 565536, 638435, 715752, 797487, 883640, 974211, 1069200, 1168607, 1272432, 1380675, 1493336, 1610415, 1731912, 1857827, 1988160
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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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lt47Q[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Min[ContinuedFraction[s][[2]]]==47]; Select[Range[2000000], lt47Q] (* Harvey P. Dale, Sep 12 2014 *)
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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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