id:A096174 - OEIS Search Results

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Numbers n such that (n^3+1)/(n+1) is prime.

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4

2, 4, 6, 16, 18, 22, 28, 34, 42, 58, 60, 70, 72, 76, 78, 90, 100, 102, 106, 112, 118, 120, 132, 142, 144, 148, 154, 156, 162, 168, 174, 190, 204, 210, 216, 232, 246, 280, 288, 294, 310, 330, 352, 358, 370, 382, 384, 396, 406, 436, 448, 454, 456, 490, 496, 526 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1)=2 because (2^3+1)/(2+1)=9/3=3 is prime, a(8)=34: (34^3+1)/(34+1)=39305/35=1123 is prime.`
	CROSSREFS	`Cf. A081256 largest prime factor of n^3+1, A096173 n^3+1 is an odd semiprime.` `Sequence in context: A099315 A005179 A037019 this_sequence A096173 A114874 A100361` `Adjacent sequences: A096171 A096172 A096173 this_sequence A096175 A096176 A096177`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 20 2004`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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