id:A075107 - OEIS Search Results

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Number of steps to reach the first integer (=A075108(n)) starting with n/floor(log2(n)) and iterating the map x -> x*ceiling(x), or -1 if no integer is ever reached.

+0
4

0, 0, 0, 2, 0, 1, 1, 0, 5, 2, 0, 3, 2, 0, 0, 3, 3, 2, 0, 2, 1, 3, 0, 2, 2, 2, 0, 1, 1, 1, 2, 5, 3, 0 (list; graph; listen)

	OFFSET	`2,4`
	COMMENT	`Starting values given by A075105(n)/A075106(n).`
	EXAMPLE	`a(5)=2 since 5/floor(log2(5)) = 5/2 -> 15/2 -> 60=A075108(5).`
	CROSSREFS	`Cf. A068119, A073524, A075102, A075120.` `Sequence in context: A113206 A158800 A144024 this_sequence A095408 A133008 A102550` `Adjacent sequences: A075104 A075105 A075106 this_sequence A075108 A075109 A075110`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 02 2002`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

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