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A031703
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Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 25.
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1
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627, 2504, 5631, 10008, 15635, 22512, 30639, 40016, 50643, 62520, 75647, 90024, 105651, 122528, 140655, 160032, 180659, 202536, 225663, 250040, 275667, 302544, 330671, 360048, 390675, 407095, 422552, 440947, 455679, 490056, 525683, 562560
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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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cf25Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Min[ContinuedFraction[s][[2]]]]==25]; Select[Range[600000], cf25Q] (* Harvey P. Dale, Mar 05 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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