id:A073180 - OEIS Search Results

Search: id:A073180

Displaying 1-1 of 1 results found.

page 1

Number of divisors of n which are not greater than the square-free kernel of n.

+0
4

1, 2, 2, 2, 2, 4, 2, 2, 2, 4, 2, 5, 2, 4, 4, 2, 2, 4, 2, 5, 4, 4, 2, 5, 2, 4, 2, 5, 2, 8, 2, 2, 4, 4, 4, 5, 2, 4, 4, 6, 2, 8, 2, 5, 5, 4, 2, 5, 2, 4, 4, 5, 2, 4, 4, 6, 4, 4, 2, 11, 2, 4, 5, 2, 4, 8, 2, 5, 4, 8, 2, 5, 2, 4, 4, 5, 4, 8, 2, 6, 2, 4, 2, 11, 4, 4, 4, 6, 2, 10, 4, 5, 4, 4, 4, 5, 2, 4, 5, 5, 2, 8, 2 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) >= A034444(n).`
	EXAMPLE	`The square-free kernel of 56=72^3 is 14=72 and the divisors <= 14 of 56 are {1, 2, 4, 7, 8, 14}, therefore a(56)=6.`
	CROSSREFS	`Cf. A000005, A073181, A073182.` `Adjacent sequences: A073177 A073178 A073179 this_sequence A073181 A073182 A073183` `Sequence in context: A058263 A048669 A034444 this_sequence A127973 A023157 A069733`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 19 2002`

page 1

Search completed in 0.002 seconds

Last modified October 11 09:12 EDT 2008. Contains 144832 sequences.

AT&T Labs Research