id:A069913 - OEIS Search Results

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Sum_{d|n} (d-1)*tau(n/d).

+0
1

0, 1, 2, 5, 4, 11, 6, 16, 12, 19, 10, 37, 12, 27, 26, 42, 16, 54, 18, 59, 36, 43, 22, 100, 32, 51, 48, 81, 28, 113, 30, 99, 56, 67, 54, 162, 36, 75, 66, 152, 40, 153, 42, 125, 108, 91, 46, 240, 60, 134, 86, 147, 52, 202, 82, 204, 96, 115, 58, 331, 60, 123, 144, 219, 96 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = A007429(n) - A007425(n).`
	CROSSREFS	`Cf. A000005, A006579.` `Sequence in context: A071297 A114393 A100710 this_sequence A072403 A010078 A074639` `Adjacent sequences: A069910 A069911 A069912 this_sequence A069914 A069915 A069916`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), May 04 2002`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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