id:A062562 - OEIS Search Results

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Sum_{k=1...n} mu(k)*sigma(k).

+0
1

0, 1, -2, -6, -6, -12, 0, -8, -8, -8, 10, -2, -2, -16, 8, 32, 32, 14, 14, -6, -6, 26, 62, 38, 38, 38, 80, 80, 80, 50, -22, -54, -54, -6, 48, 96, 96, 58, 1, 18, 174, 174, 132, 36, -8, -8, -8, 64, 16, 16, 16, 16, 88, 88, 34, 34, 106, 106, 186, 276, 216, 216, 154, 250, 250, 250, 334, 190, 122, 122, 218, 74, 2, 2, -72, 42, 42, 42 (list; graph; listen)

	OFFSET	`0,3`
	PROGRAM	`(PARI) s=[]; for(n=0, 130, s=concat(s, sum(k=1, n, moebius(k)*sigma(k)))); s`
	CROSSREFS	`Sequence in context: A083482 A099027 A134466 this_sequence A106832 A129902 A087560` `Adjacent sequences: A062559 A062560 A062561 this_sequence A062563 A062564 A062565`
	KEYWORD	`sign`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 03 2001`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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