id:A085229 - OEIS Search Results

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Smallest number which is coprime to n and to a(n-1) and not occurring earlier; a(1)=1.

+0
3

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

	OFFSET	`1,2`
	COMMENT	`Permutation of natural numbers with inverse A085230: a(A085230(n))=A085230(a(n))=n.`
	LINKS	`Index entries for sequences that are permutations of the natural numbers`
	CROSSREFS	`Cf. A079578, A084937.` `Cf. A093714.` `Sequence in context: A152208 A085230 A093715 this_sequence A093714 A080261 A138310` `Adjacent sequences: A085226 A085227 A085228 this_sequence A085230 A085231 A085232`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 22 2003`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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