id:A161889 - OEIS Search Results

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a(1)=2. a(n) = the smallest integer > a(n-1) that is coprime to n, and is such that (a(n)-a(n-1)) is not a divisor of n.

+0
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2, 5, 7, 13, 16, 23, 25, 31, 35 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) - a(n-1) = A161888(n).`
	CROSSREFS	`Cf. A161888` `Sequence in context: A121218 A062879 A065897 this_sequence A069346 A023240 A023204` `Adjacent sequences: A161886 A161887 A161888 this_sequence A161890 A161891 A161892`
	KEYWORD	`more,nonn`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jun 21 2009`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.