id:A067695 - OEIS Search Results

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Smallest prime factor with minimal exponent in canonical prime factorization of n, a(1)=1.

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1, 2, 3, 2, 5, 2, 7, 2, 3, 2, 11, 3, 13, 2, 3, 2, 17, 2, 19, 5, 3, 2, 23, 3, 5, 2, 3, 7, 29, 2, 31, 2, 3, 2, 5, 2, 37, 2, 3, 5, 41, 2, 43, 11, 5, 2, 47, 3, 7, 2, 3, 13, 53, 2, 5, 7, 3, 2, 59, 3, 61, 2, 7, 2, 5, 2, 67, 17, 3, 2, 71, 3, 73, 2, 3, 19, 7, 2, 79, 5 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`a(12) = a(2^2 * 3^1) = 3, but A020639(12) = 2;` `a(36) = a(2^2 * 3^2) = 2 = A020639(36).`
	CROSSREFS	`Cf. A020639, A034684, A028233, A051904, A067029.` `Adjacent sequences: A067692 A067693 A067694 this_sequence A067696 A067697 A067698` `Sequence in context: A079879 A071889 A091963 this_sequence A079866 A134332 A080210`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 23 2002`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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