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 A031794 Period of continued fraction for sqrt(n) contains exactly 26 ones. 0
 886, 919, 1006, 1039, 1141, 1153, 1291, 1471, 1699, 1801, 1837, 1951, 2131, 2167, 2239, 2347, 2449, 2539, 2692, 2977, 3011, 3189, 3457, 3499, 3546, 3557, 3561, 3693, 3727, 3742, 3789, 3793, 3911, 3929, 3991, 4197, 4273, 4306, 4351, 4426, 4526, 4529 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..42. MATHEMATICA cf26Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Count[ContinuedFraction[s][[2]], 1]]==26]; Select[Range[4600], cf26Q] (* Harvey P. Dale, Aug 14 2018 *) CROSSREFS Sequence in context: A318200 A295443 A261760 * A020393 A103811 A190354 Adjacent sequences: A031791 A031792 A031793 * A031795 A031796 A031797 KEYWORD nonn AUTHOR David W. Wilson STATUS approved

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Last modified November 28 04:05 EST 2023. Contains 367394 sequences. (Running on oeis4.)