id:A037144 - OEIS Search Results

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Numbers with at most 3 prime factors (counted with multiplicity).

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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 57, 58, 59, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 82, 83, 85, 86 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Complement of A033987: A001222(a(n))<=3; A117358(a(n))=1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 10 2006`
	LINKS	`Klaus Brockhaus, Table of n, a(n) for n=1..10000`
	PROGRAM	`(MAGMA) [ n: n in [1..86] \| n eq 1 or &+[ t[2]: t in Factorization(n) ] le 3 ]; /* Klaus Brockhaus, Mar 20 2007 */`
	CROSSREFS	`Cf. A033987, A001222, A117358, A128644.` `Sequence in context: A121176 A028261 A119675 this_sequence A121684 A123093 A044920` `Adjacent sequences: A037141 A037142 A037143 this_sequence A037145 A037146 A037147`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 10 2006` `More terms from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Mar 20 2007`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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