A073757 - OEIS

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A073757

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

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; refs; listen; history; internal format)

	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 * A088468 A049448 A130044` `Adjacent sequences: A073754 A073755 A073756 * A073758 A073759 A073760`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Aug 08 2002`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.