id:A156249 - OEIS Search Results

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a(n)=sum(k=1,n,(-1)^k*A000002(2*k-1))

+0
1

-1, 1, 0, 1, -1, 1, 0, 2, 1, 3, 1, 2, 1, 3, 2, 3, 1, 3, 2, 4, 3, 4, 2, 4, 3, 4, 2, 3, 1, 2, 1, 3, 1, 2, 0, 1, 0, 2, 0, 1, -1, 1, 0, 2, 0, 1, -1, 0, -1, 1, 0, 1, -1, 1, 0, 2, 1, 2, 0, 2, 1, 3, 2, 4, 2, 3, 2, 4, 3, 5, 4, 5, 3, 5, 4, 6, 4, 5, 4, 6, 5, 7, 5, 6, 4, 6, 5, 6, 4, 5, 3, 5, 4, 5, 3, 4, 3, 5, 3, 4 (list; graph; listen)

	OFFSET	`1,8`
	CROSSREFS	`Sequence in context: A108103 A111376 A157226 this_sequence A164677 A001511 A065704` `Adjacent sequences: A156246 A156247 A156248 this_sequence A156250 A156251 A156252`
	KEYWORD	`sign`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 07 2009`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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