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A031693 Least term in period of continued fraction for sqrt(n) is 15. 1
227, 904, 2031, 3608, 5635, 8112, 11039, 14416, 18243, 22520, 27247, 32424, 38051, 44128, 50655, 54320, 57632, 62032, 65059, 72936, 81263, 90040, 99267, 108944, 119071, 124656, 129648, 140675, 152152, 164079, 176456, 189283, 190154, 202560 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..80

MATHEMATICA

Select[Range[210000], !IntegerQ[Sqrt[#]] &&Min[ContinuedFraction[Sqrt[#]][[2]]] == 15&] (* Vincenzo Librandi, Feb 10 2012 *)

CROSSREFS

Sequence in context: A142390 A142219 A176012 * A158228 A115998 A092324

Adjacent sequences:  A031690 A031691 A031692 * A031694 A031695 A031696

KEYWORD

nonn,changed

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 15 04:23 EST 2012. Contains 205694 sequences.