id:A123666 - OEIS Search Results

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Numbers with an even number of prime factors, at least half of which are 2.

+0
2

1, 4, 6, 10, 14, 16, 22, 24, 26, 34, 36, 38, 40, 46, 56, 58, 60, 62, 64, 74, 82, 84, 86, 88, 94, 96, 100, 104, 106, 118, 122, 132, 134, 136, 140, 142, 144, 146, 152, 156, 158, 160, 166, 178, 184, 194, 196, 202, 204, 206, 214, 216, 218, 220, 224, 226, 228, 232, 240 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`This is the lexicographically first maximal set of nonprime integers that has unique factorization. Products of any number of terms from A100484, with repetition allowed.`
	CROSSREFS	`Cf. A100484, A002808, A123667.` `Sequence in context: A110507 A134624 A063745 this_sequence A095305 A058917 A137860` `Adjacent sequences: A123663 A123664 A123665 this_sequence A123667 A123668 A123669`
	KEYWORD	`nonn`
	AUTHOR	`Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Oct 04 2006`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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