A098883 - OEIS

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A098883

Numbers n such that (2^31-1)*(6^n) - 1 is prime.

27, 35, 69, 331, 589, 807, 1641, 1801, 2057, 2411 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	MATHEMATICA	`With[{c=2^31-1}, Select[Range[2500], PrimeQ[c 6^#-1]&]] (* From Harvey P. Dale, Oct 22 2011 *)`
	CROSSREFS	`Sequence in context: A164376 A025583 A134101 * A160119 A160379 A168671` `Adjacent sequences: A098880 A098881 A098882 * A098884 A098885 A098886`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierre-cami(AT)bbox.fr), Oct 14 2004`

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Last modified February 16 09:27 EST 2012. Contains 205904 sequences.