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A031792 Period of continued fraction for sqrt(n) contains exactly 24 ones. 0
604, 721, 1201, 1341, 1348, 1483, 1549, 1663, 1747, 1774, 1841, 1879, 1966, 2161, 2194, 2281, 2377, 2494, 2531, 2653, 2662, 2699, 2749, 2830, 2921, 2949, 3041, 3079, 3089, 3097, 3103, 3187, 3236, 3309, 3389, 3412, 3424, 3430, 3448, 3473, 3529, 3556 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

MATHEMATICA

cf24Q[n_]:=Module[{s=Sqrt[n]}, If[IntegerQ[s], 1, Count[ContinuedFraction[s][[2]], 1]]==24]; Select[Range[3600], cf24Q] (* Harvey P. Dale, Dec 11 2018 *)

CROSSREFS

Sequence in context: A250907 A209550 A151626 * A020383 A234109 A321269

Adjacent sequences:  A031789 A031790 A031791 * A031793 A031794 A031795

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified November 30 21:20 EST 2021. Contains 349426 sequences. (Running on oeis4.)