id:A087713 - OEIS Search Results

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Greatest prime factor of n-th prime's product of its neighbors.

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3, 2, 3, 3, 5, 7, 3, 5, 11, 7, 5, 19, 7, 11, 23, 13, 29, 31, 17, 7, 37, 13, 41, 11, 7, 17, 17, 53, 11, 19, 7, 13, 23, 23, 37, 19, 79, 41, 83, 43, 89, 13, 19, 97, 11, 11, 53, 37, 113, 23, 29, 17, 11, 7, 43, 131, 67, 17, 139, 47, 71, 73, 17, 31, 157, 79, 83, 13, 173, 29, 59 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = A006530((A000040(n)-1)(A000040(n)+1)) = A006530(A006093(n)A008864(n)) = A006530(A084920(n)).`
	EXAMPLE	`a(10) = A006530(A000040(10)^2 - 1) = A006530(2929-1) =` `A006530(840) = A006530(7532^3) = 7.`
	CROSSREFS	`Adjacent sequences: A087710 A087711 A087712 this_sequence A087714 A087715 A087716` `Sequence in context: A125748 A058680 A070544 this_sequence A089319 A117231 A106151`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 28 2003`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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