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 A031739 Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 61. 1
 3723, 14888, 33495, 59544, 93035, 133968, 182343, 238160, 301419, 372120, 450263, 535848, 628875, 729344, 837255, 952608, 1075403, 1205640, 1343319, 1488440, 1641003, 1801008, 1968455, 2143344, 2325675, 2515448, 2712663, 2917320, 3129419 (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 cf61Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Min[ContinuedFraction[ s][[2]]]]==61]; Select[Range[313*10^4], cf61Q] (* Harvey P. Dale, Jun 09 2021 *) CROSSREFS Sequence in context: A221013 A224436 A031559 * A251206 A038012 A020410 Adjacent sequences: A031736 A031737 A031738 * A031740 A031741 A031742 KEYWORD nonn AUTHOR STATUS approved

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Last modified March 30 00:49 EDT 2023. Contains 361599 sequences. (Running on oeis4.)