id:A073757 - OEIS Search Results

Search: id:A073757

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Number of numbers "related" to n: either divisors or terms in RRS of n.

+0
23

1, 2, 3, 4, 5, 5, 7, 7, 8, 7, 11, 9, 13, 9, 11, 12, 17, 11, 19, 13, 15, 13, 23, 15, 22, 15, 21, 17, 29, 15, 31, 21, 23, 19, 27, 20, 37, 21, 27, 23, 41, 19, 43, 25, 29, 25, 47, 25, 44, 25, 35, 29, 53, 25, 43, 31, 39, 31, 59, 27, 61, 33, 41, 38, 51, 27, 67, 37, 47, 31, 71, 35, 73 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=n-A0045763(n)=d(n)+Phi(n)-1` `Row sums of triangle A134673 - Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 05 2007`
	EXAMPLE	`If n=prime then a(n)=n.`
	CROSSREFS	`Cf. A000004, A000010, A045763.` `Cf. A134673.` `Sequence in context: A094802 A075084 A086593 this_sequence A088468 A049448 A130044` `Adjacent sequences: A073754 A073755 A073756 this_sequence A073758 A073759 A073760`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Aug 08 2002`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research