id:A139118 - OEIS Search Results

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Numbers with nonprime number of divisors.

+0
2

1, 6, 8, 10, 12, 14, 15, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 82, 84, 85, 86, 87, 88, 90, 91 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A000005(a(n)) is nonprime. Complement of A009087. Also, nonprime numbers with nonprime number of divisors.`
	CROSSREFS	`Cf. A000005, A009087, A018252.` `Adjacent sequences: A139115 A139116 A139117 this_sequence A139119 A139120 A139121` `Sequence in context: A080731 A080257 A050199 this_sequence A089229 A123240 A131181`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), May 09 2008`

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

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