id:A085893 - OEIS Search Results

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Group the natural numbers such that the product of the n-th group has n prime divisors. (1), (2), (3,4), (5,6,),(7,8,9,10),(11,12,13,14),(15,16,17,18,19,20,21),... Sequence contains the number of terms in the groups.

+0
3

1, 1, 2, 2, 4, 4, 7, 7, 7, 8, 10, 12, 11, 13, 14, 15, 19, 16, 19, 18, 21, 19, 24, 24, 24, 26, 27, 28, 29, 31, 29, 33, 33, 35, 37, 37, 38, 38, 41, 39, 45, 44, 45, 44, 49, 47, 52, 48, 52, 52, 56, 52, 53, 60, 59, 58, 59, 65, 64, 61, 65, 63, 70, 70, 70, 68, 73, 75, 71, 76, 75, 79, 78 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Cf. A085892, A085894.` `Sequence in context: A033732 A033752 A059886 this_sequence A060028 A099770 A099383` `Adjacent sequences: A085890 A085891 A085892 this_sequence A085894 A085895 A085896`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Jul 10 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 13 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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