A050564 - OEIS

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A050564

Numbers n such that 77*2^n-1 is prime.

2, 4, 14, 26, 58, 60, 64, 100, 122, 212, 566, 638, 1214, 2080, 4852, 5356, 5720, 7044, 8320, 8556, 10684, 14584, 39016, 47972, 72008, 217956, 223512, 387680, 441528, 607920, 855770 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`1467554 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: A096012 A102930 A135113 * A047830 A036051 A115626` `Adjacent sequences: A050561 A050562 A050563 * A050565 A050566 A050567`
	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 14 03:37 EST 2012. Contains 205570 sequences.