id:A057428 - OEIS Search Results

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Sign(-n): a(n) = 1 if -n > 0, = -1 if -n < 0, = 0 if -n = 0.

+0
3

0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`G.f.: -x/(1-x). a(n) = -A057427(n).` `a(n)=-[(n+2) mod (n+1)], with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Aug 28 2007`
	CROSSREFS	`First differences of A001489.` `Sequence in context: A070238 A103131 A057427 this_sequence A062157 A112347 A134824` `Adjacent sequences: A057425 A057426 A057427 this_sequence A057429 A057430 A057431`
	KEYWORD	`easy,sign`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Sep 05 2000`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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