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A065029 Period length of the continued fraction for sqrt(2)*n is 2. 0
2, 3, 6, 10, 12, 17, 34, 35, 51, 58, 68, 70, 99, 102, 136, 198, 204, 338, 396, 408, 495, 577, 693, 990, 1154, 1189, 1386, 1731, 1970, 1980, 2308, 2378, 2772, 3363, 3462, 3465, 4616, 6726, 6895, 6924, 6930, 9232, 9809, 11482, 13452, 13790, 13848, 13860 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Select[ Range[ 25000], Length[ Last[ ContinuedFraction[ Sqrt[2] *# ]]] == 2 & ]

CROSSREFS

Cf. A064933.

Sequence in context: A104074 A140785 A038775 * A120754 A023547 A190690

Adjacent sequences:  A065026 A065027 A065028 * A065030 A065031 A065032

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 02 2001

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Last modified February 16 14:37 EST 2012. Contains 205930 sequences.