id:A121216 - OEIS Search Results

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a(1)=1. a(2) = 2. a(n) = the smallest positive integer which does not occur earlier in the sequence and which is coprime to a(n-2).

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1, 2, 3, 5, 4, 6, 7, 11, 8, 9, 13, 10, 12, 17, 19, 14, 15, 23, 16, 18, 21, 25, 20, 22, 27, 29, 26, 24, 31, 35, 28, 32, 33, 37, 34, 30, 39, 41, 38, 36, 43, 47, 40, 42, 49, 53, 44, 45, 51, 46, 50, 55, 57, 48, 52, 59, 61, 54, 56, 65, 67, 58, 60, 63, 71, 62, 64, 69, 73, 68, 66, 75 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	CROSSREFS	`Sequence in context: A123917 A154444 A154443 this_sequence A132196 A153150 A069766` `Adjacent sequences: A121213 A121214 A121215 this_sequence A121217 A121218 A121219`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Aug 20 2006`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 22 2006`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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