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A064933 Period length of the continued fraction for sqrt(3)*n is 2. 2
1, 2, 3, 4, 7, 11, 14, 15, 26, 28, 41, 52, 56, 78, 97, 130, 153, 156, 194, 209, 260, 362, 388, 390, 571, 679, 724, 765, 776, 780, 1351, 1358, 1552, 2131, 2702, 2716, 2911, 3982, 4053, 5042, 5404, 5432, 6755, 6878, 7953, 7964, 8106, 8109, 10084, 10808 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

R. K. Guy, personal communication.

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

Select[Range[1024], Length[Last[ContinuedFraction[Sqrt[3]*# ]]]==2& ]

Select[ Range[20000], Length[ Last[ ContinuedFraction[ Sqrt[3]*# ]]] ==2 & ]

CROSSREFS

Sequence in context: A232543 A279071 A171027 * A060731 A238492 A140827

Adjacent sequences:  A064930 A064931 A064932 * A064934 A064935 A064936

KEYWORD

nonn

AUTHOR

Wouter Meeussen, Oct 26 2001

EXTENSIONS

More terms from Robert G. Wilson v, Oct 31 2001

STATUS

approved

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Last modified April 25 23:48 EDT 2019. Contains 322465 sequences. (Running on oeis4.)