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A031755 Least term in period of continued fraction for sqrt(n) is 77. 1
5931, 23720, 53367, 94872, 148235, 213456, 290535, 379472, 480267, 592920, 717431, 853800, 1002027, 1162112, 1334055, 1517856, 1713515, 1921032, 2140407, 2371640, 2614731, 2869680, 3136487, 3415152, 3705675, 4008056, 4322295, 4648392, 4986347 (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

cQ[n_]:=Module[{s=Sqrt[n]}, !IntegerQ[s]&&Min[ContinuedFraction[s][[2]]] == 77]; Select[Range[5000000], cQ] (* Harvey P. Dale, Dec 11 2012 *)

CROSSREFS

Sequence in context: A284980 A251464 A031575 * A133598 A028517 A289515

Adjacent sequences:  A031752 A031753 A031754 * A031756 A031757 A031758

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 17 06:08 EDT 2019. Contains 328106 sequences. (Running on oeis4.)