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A031701 Numbers n such that the least term in the period of the continued fraction for sqrt(n) is 23. 1
531, 2120, 4767, 8472, 13235, 19056, 25935, 33872, 42867, 52920, 64031, 76200, 89427, 103712, 119055, 135456, 152915, 171432, 191007, 211640, 233331, 256080, 279887, 292728, 304752, 319272, 330675, 357656, 385695, 414792, 444947, 476160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..60

MATHEMATICA

Select[Range[500000], !IntegerQ[Sqrt[#]] && Min[ContinuedFraction[Sqrt[#]][[2]]] == 23&] (* Vincenzo Librandi, Feb 10 2012 *)

CROSSREFS

Sequence in context: A031967 A031521 A156772 * A158367 A225937 A225936

Adjacent sequences:  A031698 A031699 A031700 * A031702 A031703 A031704

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 23 02:46 EDT 2017. Contains 286909 sequences.