A050552 - OEIS

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A050552

Numbers n such that 53*2^n-1 is prime.

2, 6, 8, 42, 50, 62, 362, 488, 642, 846, 2870, 3042, 5096, 10556, 12642, 17850, 21710, 25230, 30392, 43122, 206970 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`582078 is also a member. - Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008`
	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: A192009 A065953 A118211 * A105607 A098239 A140257` `Adjacent sequences: A050549 A050550 A050551 * A050553 A050554 A050555`
	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 16 21:51 EST 2012. Contains 205978 sequences.