id:A050904 - OEIS Search Results

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Numbers n such that 291*2^n-1 is prime.

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2, 5, 9, 11, 17, 21, 29, 30, 33, 50, 59, 62, 137, 161, 281, 290, 533, 842, 1410, 1553, 4794, 5529, 5661, 7013, 7470, 19605, 63477, 72513, 152942, 201494, 220562, 236117, 291705, 313433, 372342, 386430, 389225, 531347, 565917, 810347, 832410 (list; graph; listen)

	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: A022429 A020907 A067568 this_sequence A057471 A099434 A108165` `Adjacent sequences: A050901 A050902 A050903 this_sequence A050905 A050906 A050907`
	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 December 6 22:55 EST 2009. Contains 170429 sequences.

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