id:A065030 - OEIS Search Results

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Period length of the continued fraction for sqrt(5)*n is 2.

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2, 4, 9, 18, 34, 36, 68, 72, 161, 322, 323, 483, 610, 644, 646, 966, 1220, 1288, 1292, 1449, 1932, 2576, 2889, 2898, 3355, 3864, 5778, 5796, 6710, 7728, 9455, 10946, 11556, 11592, 13420, 18910, 21892, 23112, 23184 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Select[ Range[ 25000], Length[ Last[ ContinuedFraction[ Sqrt[5] *# ]]] == 2 & ]`
	CROSSREFS	`Cf. A064933.` `Sequence in context: A034685 A046683 A065055 this_sequence A103321 A138196 A101351` `Adjacent sequences: A065027 A065028 A065029 this_sequence A065031 A065032 A065033`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 02 2001`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research