A031797 - OEIS

A031797

Period of continued fraction for sqrt(n) contains exactly 29 ones.

8851, 12463, 13843, 18283, 19099, 19503, 20335, 23423, 23544, 25135, 26095, 27451, 29032, 29747, 30619, 31603, 33043, 35639, 40211, 41144, 43739, 46883, 47371, 48184, 51423, 52823, 58283, 61072, 62331, 62995, 65291, 65859, 69616, 72475, 75851, 77127

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..36.

MATHEMATICA

cf29Q[n_]:=With[{s=Sqrt[n]}, If[IntegerQ[s], 1, Count[ContinuedFraction[s][[2]], 1]]==29]; Select[Range[78000], cf29Q] (* Harvey P. Dale, Oct 19 2024 *)

CROSSREFS

Sequence in context: A031592 A250010 A064296 * A202159 A216926 A292572

Adjacent sequences: A031794 A031795 A031796 * A031798 A031799 A031800

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved