id:A065007 - OEIS Search Results

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Integers for which the periodic part of the continued fraction for the square root of n begins with 4.

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5, 18, 39, 52, 68, 85, 105, 126, 149, 150, 175, 202, 203, 232, 263, 264, 296, 297, 332, 333, 369, 370, 409, 410, 450, 451, 493, 494, 495, 539, 540, 586, 587, 588, 636, 637, 687, 688, 689, 740, 741, 742, 796, 797, 798, 853, 854, 855, 913, 914, 915, 974, 975 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`The continued fraction for the square root of 39 is 6, {4, 12}.`
	MATHEMATICA	`Select[ Range[1000], First[ Last[ ContinuedFraction[ Sqrt[ # ]]]] == 4 & ]`
	CROSSREFS	`Sequence in context: A063120 A031051 A038346 this_sequence A031428 A007742 A000338` `Adjacent sequences: A065004 A065005 A065006 this_sequence A065008 A065009 A065010`
	KEYWORD	`cofr,easy,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 01 2001`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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