id:A063974 - OEIS Search Results

Search: id:A063974

Displaying 1-1 of 1 results found.

page 1

Number of terms in inverse set of usigma = sum of unitary divisors = A034448.

+0
2

1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 2, 0, 1, 0, 0, 1, 2, 0, 2, 0, 0, 0, 3, 0, 1, 0, 1, 0, 3, 0, 2, 1, 0, 0, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 0, 0, 3, 0, 2, 0, 0, 0, 3, 0, 1, 0, 0, 0, 4, 0, 1, 0, 0, 1, 0, 0, 2, 0, 1, 0, 6, 0, 1, 0, 0, 0, 1, 0, 3, 0, 1, 0, 3, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 4, 0, 1, 0, 1, 0, 2, 0, 2, 0 (list; graph; listen)

	OFFSET	`1,12`
	FORMULA	`Size of set {x; usigma[x]=n}.`
	EXAMPLE	`usigma[x]=288, invusigma[288]={138,154,165,168,213,235,248,253}, so a(288)=8, the number of all terms in the inverse set.`
	CROSSREFS	`A051444, A054973, A057637, A034444, A034448.` `Adjacent sequences: A063971 A063972 A063973 this_sequence A063975 A063976 A063977` `Sequence in context: A002324 A101671 A078979 this_sequence A080101 A025895 A104451`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Sep 05 2001`

page 1

Search completed in 0.002 seconds

Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

AT&T Labs Research