id:A114006 - OEIS Search Results

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Row sums of number triangle A114004.

+0
3

1, -1, -1, 1, -1, 3, -1, -1, 1, 3, -1, -5, -1, 3, 3, 1, -1, -5, -1, -5, 3, 3, -1, 7, 1, 3, -1, -5, -1, -13, -1, -1, 3, 3, 3, 13, -1, 3, 3, 7, -1, -13, -1, -5, -5, 3, -1, -9, 1, -5, 3 (list; graph; listen)

	OFFSET	`1,6`
	COMMENT	`A signed version of A050328.`
	FORMULA	`a(n)=(Sum_{d divides n, d<n} A010052(n/d)a(d))(-1)^(A065043(n)-1); a(n)=(Sum_{d divides n, d<n} A010052(n/d)a(d))(-1)^(if(bigomega(n)%2==1, 1, 0)).`
	CROSSREFS	`Sequence in context: A102396 A095960 A029356 this_sequence A050328 A030401 A166030` `Adjacent sequences: A114003 A114004 A114005 this_sequence A114007 A114008 A114009`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Nov 12 2005`

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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