id:A096175 - OEIS Search Results

Search: id:A096175

Displaying 1-1 of 1 results found.

page 1

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

+0
3

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; listen)

	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 this_sequence A027827 A157941 A059611` `Adjacent sequences: A096172 A096173 A096174 this_sequence A096176 A096177 A096178`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 22 2004`

page 1

Search completed in 0.002 seconds

Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research