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 A031776 Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 98. 1
 2402, 9606, 21612, 38420, 60030, 86442, 117656, 153672, 194490, 240110, 290532, 345756, 405782, 470610, 540240, 614672, 693906, 777942, 866780, 960420, 1058862, 1162106, 1270152, 1383000, 1500650, 1623102, 1750356, 1882412, 2019270, 2160930 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 MATHEMATICA lt98Q[n_]:=Module[{c=Sqrt[n]}, !IntegerQ[c]&&Min[ContinuedFraction[c][[2]]] == 98]; Select[Range[2200000], lt98Q] (* Harvey P. Dale, Dec 17 2012 *) CROSSREFS Sequence in context: A097015 A222461 A013845 * A251774 A031547 A031727 Adjacent sequences:  A031773 A031774 A031775 * A031777 A031778 A031779 KEYWORD nonn AUTHOR STATUS approved

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Last modified September 19 00:22 EDT 2021. Contains 347549 sequences. (Running on oeis4.)