id:A111470 - OEIS Search Results

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All the numbers with the prime signature of n using only prime divisors of n.

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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 13, 14, 15, 16, 17, 18, 12, 19, 20, 50, 21, 22, 23, 24, 54, 25, 26, 27, 28, 98, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 250, 41, 42, 43, 44, 242, 45, 75, 46, 47, 48, 162 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`If n is a perfect power of a squarefree number then it contributes only one term.`
	EXAMPLE	`18 follows 12 as 12=2^23 and 18 = 3^22.`
	CROSSREFS	`Sequence in context: A066254 A004841 A161950 this_sequence A130577 A131207 A134336` `Adjacent sequences: A111467 A111468 A111469 this_sequence A111471 A111472 A111473`
	KEYWORD	`easy,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 05 2005`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research