id:A077008 - OEIS Search Results

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Legendre symbol(p(n)-1,p(n)), n > 1.

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

	OFFSET	`2,1`
	COMMENT	`1. p(n) denotes the n-th prime. 2. phi(p(n)) = p(n)-1.`
	MATHEMATICA	`p = Table[Prime[i], {i, 2, 101}]; Table[JacobiSymbol[p[[j]] - 1, p[[j]]], {j, 1, 100}]`
	CROSSREFS	`Sequence in context: A033999 A057077 A063747 this_sequence A087960 A114523 A000012` `Adjacent sequences: A077005 A077006 A077007 this_sequence A077009 A077010 A077011`
	KEYWORD	`sign`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Nov 28 2002`

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

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