id:A079054 - OEIS Search Results

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a(n) = -1 if the closest prime to prime(n) is prime(n-1); = 1 if the closest prime to prime(n) is prime(n+1); = 0 if prime(n-1) and prime(n+1) are equally close to prime(n).

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

	OFFSET	`1,1`
	EXAMPLE	`prime(1) = 2 is closer to prime(2) = 3 than prime(3) = 5, so a(2) = -1.`
	CROSSREFS	`Adjacent sequences: A079051 A079052 A079053 this_sequence A079055 A079056 A079057` `Sequence in context: A103583 A070178 A127254 this_sequence A130716 A014102 A014195`
	KEYWORD	`easy,sign`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Feb 02 2003`

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Last modified October 11 09:12 EDT 2008. Contains 144832 sequences.

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