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A031779 Period of continued fraction for sqrt(n) contains exactly 11 ones. 1
1075, 1675, 2183, 2623, 2783, 2871, 3075, 3224, 3256, 3551, 3915, 4675, 5656, 6808, 6815, 7599, 7663, 7987, 8299, 8399, 8695, 8995, 9271, 10672, 10855, 11395, 11403, 11919, 12728, 13407, 14608, 14672, 15023, 15568, 15640, 15768, 16119, 16856, 17043 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
oQ[n_]:=Module[{sqn=Sqrt[n]}, !IntegerQ[sqn]&&Count[ ContinuedFraction[ sqn][[2]], 1]==11]; Select[Range[20000], oQ] (* Harvey P. Dale, Nov 10 2011 *)
CROSSREFS
Sequence in context: A250636 A329148 A014364 * A336781 A237213 A235959
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified April 18 13:29 EDT 2024. Contains 371780 sequences. (Running on oeis4.)