id:A028233 - OEIS Search Results

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If n = p_1^e_1 * ... * p_k^e_k, p_1 < ... < p_k primes, then a(n) = p_1^e_1.

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1, 2, 3, 4, 5, 2, 7, 8, 9, 2, 11, 4, 13, 2, 3, 16, 17, 2, 19, 4, 3, 2, 23, 8, 25, 2, 27, 4, 29, 2, 31, 32, 3, 2, 5, 4, 37, 2, 3, 8, 41, 2, 43, 4, 9, 2, 47, 16, 49, 2, 3, 4, 53, 2, 5, 8, 3, 2, 59, 4, 61, 2, 9, 64, 5, 2, 67, 4, 3, 2, 71, 8, 73, 2, 3, 4, 7, 2, 79, 16, 81, 2, 83, 4, 5, 2 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	FORMULA	`a(n) = A020639(n)^A067029(n). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 13 2006`
	CROSSREFS	`Cf. A020639, A006530, A034684, A028233, A034699, A053585.` `See also A028234.` `Sequence in context: A026362 A081811 A034684 this_sequence A066296 A053626 A134364` `Adjacent sequences: A028230 A028231 A028232 this_sequence A028234 A028235 A028236`
	KEYWORD	`nonn,nice,easy`
	AUTHOR	`Marc LeBrun (mlb(AT)well.com)`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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