id:A138222 - OEIS Search Results

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a(n) = the largest divisor of n that is <= the number of positive divisors of n.

+0
4

1, 2, 1, 2, 1, 3, 1, 4, 3, 2, 1, 6, 1, 2, 3, 4 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`There are four positive divisors of 15: (1,3,5,15). The largest of these divisors that is <=4 is 3; so a(15) = 3.`
	CROSSREFS	`Cf. A138221, A138223, A138224, A000005.` `Adjacent sequences: A138219 A138220 A138221 this_sequence A138223 A138224 A138225` `Sequence in context: A105259 A029229 A029216 this_sequence A138224 A046205 A046206`
	KEYWORD	`more,nonn`
	AUTHOR	`Leroy Quet (qq-quet(AT)mindspring.com), Mar 06 2008`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.