id:A033031 - OEIS Search Results

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Square-free kernels of 3-smooth numbers.

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1, 2, 3, 2, 6, 2, 3, 6, 2, 6, 6, 3, 2, 6, 6, 6, 2, 6, 3, 6, 6, 2, 6, 6, 6, 6, 3, 2, 6, 6, 6, 6, 6, 2, 6, 6, 3, 6, 6, 6, 2, 6, 6, 6, 6, 6, 6, 2, 3, 6, 6, 6, 6, 6, 6, 2, 6, 6, 6, 6, 6, 3, 6, 6, 2, 6, 6, 6, 6, 6, 6, 6, 6, 2, 6, 6, 3, 6, 6, 6, 6, 6, 6, 2, 6, 6, 6, 6, 6, 6, 6, 6, 3, 6, 2, 6, 6, 6, 6, 6, 6, 6 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A007947(A003586(n)).` `a(n) = (20^(A022328(n)-1)) (3*0^(A022329(n)-1)) for n>1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 18 2003`
	EXAMPLE	`A003586(17) = 64 = 2^6 -> a(17) = 2,` `A003586(18) = 72 = 2^3 * 3^2 -> a(18) = 2*3 = 6,` `A003586(19) = 81 = 3^4 -> a(19) = 3.`
	CROSSREFS	`Sequence in context: A163591 A085307 A078599 this_sequence A134060 A161888 A157224` `Adjacent sequences: A033028 A033029 A033030 this_sequence A033032 A033033 A033034`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 21 2003`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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