id:A160995 - OEIS Search Results

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a(n) = the smallest positive integer neither a divisor of n nor coprime to n.

+0
2

4, 6, 6, 10, 4, 14, 6, 6, 4, 22, 8, 26, 4, 6, 6, 34, 4, 38, 6, 6, 4, 46, 9, 10, 4, 6, 6, 58, 4, 62, 6, 6, 4, 10, 8, 74, 4, 6, 6, 82, 4, 86, 6, 6, 4, 94, 9, 14, 4, 6, 6, 106, 4, 10, 6, 6, 4, 118, 8, 122, 4, 6, 6, 10, 4, 134, 6, 6, 4, 142, 10, 146, 4, 6, 6, 14, 4, 158, 6, 6, 4, 166, 8, 10, 4, 6 (list; graph; listen)

	OFFSET	`2,1`
	COMMENT	`a(1) doesn't exist because 1 is coprime to all integers.`
	FORMULA	`a(p) = 2p, for all primes p.`
	CROSSREFS	`Sequence in context: A104123 A094078 A016122 this_sequence A155750 A159475 A098350` `Adjacent sequences: A160992 A160993 A160994 this_sequence A160996 A160997 A160998`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jun 01 2009`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 13 2009`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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