id:A085914 - OEIS Search Results

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Group the natural numbers so that the product of the terms of the n-th group is divisible by n!: (1),(2),(3,4),(5,6,7,8),(9,10,11,12),(13,14,15,16,17,18),(19,20,21,22,23,24),... Sequence contains the number of terms in each group.

+0
4

1, 1, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12, 14, 14, 16, 16, 18, 18, 20, 20, 22, 22, 24, 24, 26, 26, 28, 28, 30, 30, 32, 32, 34, 34, 36, 36, 38, 38, 40, 40, 42, 42, 44, 44, 46, 46, 48, 48, 50, 50, 52, 52, 54, 54, 56, 56, 58, 58, 58, 58, 62, 63, 63, 62, 66, 64, 68, 68, 68, 70, 66 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`a(n) <= n.` `This sequence may be related to the smoothing sequence suggested in A138023. - Enoch Haga (Enokh(AT)comcast.net), Feb 28 2008`
	CROSSREFS	`Cf. A085912, A085913, A085915.` `Cf. A138023.` `Sequence in context: A058043 A113724 A111650 this_sequence A014684 A113638 A111457` `Adjacent sequences: A085911 A085912 A085913 this_sequence A085915 A085916 A085917`
	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 15 2003`

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

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