id:A105591 - OEIS Search Results

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a(n)=n+2-sum{k=0..n, -mu(k-mod(k^5,5k))}

+0
1

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 19, 19, 19 (list; graph; listen)

	OFFSET	`0,11`
	COMMENT	`A Moebius quintuple count.` `Numbers appear in quintuples or multiples of quintuples.`
	CROSSREFS	`Sequence in context: A114227 A112593 A113215 this_sequence A130497 A126715 A105121` `Adjacent sequences: A105588 A105589 A105590 this_sequence A105592 A105593 A105594`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 14 2005`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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