id:A066560 - OEIS Search Results

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Smallest composite number divisible by n.

+0
2

4, 4, 6, 4, 10, 6, 14, 8, 9, 10, 22, 12, 26, 14, 15, 16, 34, 18, 38, 20, 21, 22, 46, 24, 25, 26, 27, 28, 58, 30, 62, 32, 33, 34, 35, 36, 74, 38, 39, 40, 82, 42, 86, 44, 45, 46, 94, 48, 49, 50, 51, 52, 106, 54, 55, 56, 57, 58, 118, 60, 122, 62, 63, 64, 65, 66, 134, 68, 69, 70 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`For n>=2: a(n) = 2*n if n prime; otherwise a(n) = n.`
	CROSSREFS	`Sequence in context: A077553 A010659 A131089 this_sequence A085050 A071256 A078240` `Adjacent sequences: A066557 A066558 A066559 this_sequence A066561 A066562 A066563`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 17 2001`
	EXTENSIONS	`More terms and formula from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 24 2001`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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