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A020432 Numbers k such that the continued fraction for sqrt(k) has period 93. 0
4549, 5737, 6217, 7529, 8009, 8849, 10477, 12013, 14593, 14785, 14897, 16193, 17833, 18085, 18937, 18985, 19093, 19937, 20177, 21341, 22073, 22346, 23357, 26218, 26501, 29569, 31753, 32554, 35554, 37021, 38557, 38593, 41441, 41557, 42257, 44762, 47389 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..37.

MATHEMATICA

cf93Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Length[ ContinuedFraction[ s][[2]]]]==93]; Select[Range[50000], cf93Q] (* Harvey P. Dale, Jun 25 2017 *)

CROSSREFS

Sequence in context: A307919 A031607 A193311 * A186471 A210305 A102748

Adjacent sequences:  A020429 A020430 A020431 * A020433 A020434 A020435

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified August 10 13:12 EDT 2022. Contains 356039 sequences. (Running on oeis4.)