A032496 - OEIS

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A032496

Numbers n such that 239*2^n+1 is prime.

1, 3, 5, 7, 17, 29, 31, 89, 135, 229, 257, 305, 493, 781, 811, 1177, 1315, 1709, 2267, 5283, 6109, 7763, 7923, 16481, 18457, 29187, 39487, 53393, 59905 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Ray Ballinger, Proth Search Page` `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`
	CROSSREFS	`Sequence in context: A053341 A086086 A141772 * A002092 A174394 A057476` `Adjacent sequences: A032493 A032494 A032495 * A032497 A032498 A032499`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.