id:A082513 - OEIS Search Results

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a(n)=A000720(n)-A000005(n).

+0
1

-1, -1, 0, -1, 1, -1, 2, 0, 1, 0, 3, -1, 4, 2, 2, 1, 5, 1, 6, 2, 4, 4, 7, 1, 6, 5, 5, 3, 8, 2, 9, 5, 7, 7, 7, 2, 10, 8, 8, 4, 11, 5, 12, 8, 8, 10, 13, 5, 12, 9, 11, 9, 14, 8, 12, 8, 12, 12, 15, 5, 16, 14, 12, 11, 14, 10, 17, 13, 15, 11, 18, 8, 19, 17, 15, 15, 17, 13, 20, 12, 17, 18, 21, 11, 19, 19, 19, 15, 22, 12, 20, 18, 20, 20, 20, 12, 23, 19, 19, 16 (list; graph; listen)

	OFFSET	`1,7`
	MATHEMATICA	`Table[ -DivisorSigma[0, w]+PrimePi[w], {w, 1, 128}]`
	CROSSREFS	`Cf. A000010, A000005, A000720, A073757, A037228, A063070, A045763.` `Adjacent sequences: A082510 A082511 A082512 this_sequence A082514 A082515 A082516` `Sequence in context: A106844 A125989 A125924 this_sequence A086780 A143782 A073430`
	KEYWORD	`easy,sign`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Apr 29 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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