A050616 - OEIS

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A050616

Numbers n such that 149*2^n-1 is prime.

4, 16, 48, 60, 240, 256, 304, 2644, 3720, 25132, 39472, 212460, 592968 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300` `Wilfrid Keller, List of primes k.2^n - 1 for k < 300` `Index entries for sequences of n such that k2^n-1 (or k2^n+1) is prime` `Kosmaj, Riesel list k<300.`
	CROSSREFS	`Sequence in context: A007315 A055342 A174836 * A006009 A100625 A203248` `Adjacent sequences: A050613 A050614 A050615 * A050617 A050618 A050619`
	KEYWORD	`hard,nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 29 1999`
	EXTENSIONS	`More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008`

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Last modified February 17 03:45 EST 2012. Contains 205978 sequences.