id:A076369 - OEIS Search Results

Search: id:A076369

Displaying 1-1 of 1 results found.

page 1

n + mu(n), where mu is the Moebius-function (A008683).

+0
1

2, 1, 2, 4, 4, 7, 6, 8, 9, 11, 10, 12, 12, 15, 16, 16, 16, 18, 18, 20, 22, 23, 22, 24, 25, 27, 27, 28, 28, 29, 30, 32, 34, 35, 36, 36, 36, 39, 40, 40, 40, 41, 42, 44, 45, 47, 46, 48, 49, 50, 52, 52, 52, 54, 56, 56, 58, 59, 58, 60, 60, 63, 63, 64, 66, 65, 66, 68, 70, 69, 70, 72 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = n iff n is not square-free:` `a(A013929(k))=A013929(k) and a(A005117(k))<>A005117(k).`
	FORMULA	`a(n)=n+MoebiusMu[n]=A000027[n]+A008683[n].`
	CROSSREFS	`Cf. A000027, A008683, A063015, A076840.` `Sequence in context: A073252 A134005 A132320 this_sequence A072727 A057061 A034804` `Adjacent sequences: A076366 A076367 A076368 this_sequence A076370 A076371 A076372`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com) and Labos E. (labos(AT)ana.sote.hu), Oct 14 2002`

page 1

Search completed in 0.002 seconds

Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

AT&T Labs Research