id:A064720 - OEIS Search Results

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A Beatty sequence for 3^i + 3^-i +1.

+0
3

2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 128, 130, 132, 134 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`3^i + 3^-i + 1 ~= 1.90966484565321951005513028719008497... ~= 21/11.` `Different from A059548, although the sequences agree for about 1400 terms. - Joshua Zucker, Apr 25 2007`
	MATHEMATICA	`a = Chop[ N[ 3^I + 3^-I +1, 36], 10^-40]; Table[ Floor[n*a/(a-1))], {n, 1, 75} ]`
	CROSSREFS	`Cf. A064719.` `Adjacent sequences: A064717 A064718 A064719 this_sequence A064721 A064722 A064723` `Sequence in context: A137804 A054965 A059548 this_sequence A029741 A085125 A134930`
	KEYWORD	`easy,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 13 2001`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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