A096175 - OEIS

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A096175

Numbers n such that n^3-1 is an odd semiprime.

6, 8, 12, 14, 20, 24, 38, 54, 62, 80, 90, 110, 138, 150, 164, 168, 192, 194, 272, 278, 314, 332, 348, 398, 402, 434, 500, 572, 642, 644, 720, 728, 762, 798, 812, 860, 864, 878, 920, 992, 1020, 1022, 1070, 1092, 1098, 1118, 1130, 1182, 1202, 1230, 1260, 1308 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`Dario A. Alpern, Factorization using the Elliptic Curve Method..`
	EXAMPLE	`a(1)=6 because 6^3-1=216-1=215=5*43.`
	CROSSREFS	`Cf. A096173 n^3+1 is an odd semiprime, A081257 largest prime factor of n^3-1, A096176 (n^3-1)/(n-1) is prime, A046315.` `Sequence in context: A109138 A123303 A063207 * A027827 A157941 A059611` `Adjacent sequences: A096172 A096173 A096174 * A096176 A096177 A096178`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 22 2004`

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Last modified February 14 05:53 EST 2012. Contains 205570 sequences.