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 A031729 Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 51. 1
 2603, 10408, 23415, 41624, 65035, 93648, 127463, 166480, 210699, 260120, 314743, 374568, 439595, 509824, 585255, 665888, 751723, 842760, 938999, 1040440, 1147083, 1258928, 1375975, 1498224, 1625675, 1758328, 1896183, 2039240, 2187499, 2340960 (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 ltcf51Q[n_]:=Module[{s=Sqrt[n], lt}, lt=If[IntegerQ[s], 1, Min[ ContinuedFraction[ s][[2]]]]; lt==51]; Select[Range[2400000], ltcf51Q] (* Harvey P. Dale, Aug 26 2013 *) CROSSREFS Sequence in context: A262799 A183965 A031549 * A001726 A109487 A015309 Adjacent sequences:  A031726 A031727 A031728 * A031730 A031731 A031732 KEYWORD nonn AUTHOR STATUS approved

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Last modified May 21 17:37 EDT 2022. Contains 353921 sequences. (Running on oeis4.)