id:A105054 - OEIS Search Results

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a(n) is n-th positive integer among those which do not occure earlier in sequence and which are coprime to n.

+0
2

1, 5, 7, 13, 8, 29, 11, 25, 22, 37, 17, 61, 20, 51, 44, 49, 27, 85, 32, 77, 59, 75, 38, 113, 47, 93, 68, 101, 45, 163, 52, 105, 83, 115, 76, 167, 58, 131, 103, 149, 66, 221, 70, 153, 133, 155, 74, 223, 90, 187, 127, 183, 87, 251, 109, 207, 142, 193, 95, 329, 98, 205, 173 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`a(4) is the 4th positive integer coprime to 4 and not among the first 3 terms of the sequence (i.e. the 4th term among 3, 9, 11, 13, 15,...).`
	CROSSREFS	`Cf. A069213.` `Sequence in context: A020686 A011984 A063187 this_sequence A088897 A074755 A002659` `Adjacent sequences: A105051 A105052 A105053 this_sequence A105055 A105056 A105057`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Apr 04 2005`
	EXTENSIONS	`More terms from John W. Layman (layman(AT)math.vt.edu), Apr 08 2005`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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