A032394 - OEIS

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A032394

Numbers n such that 89*2^n+1 is prime.

1, 7, 9, 21, 37, 61, 589, 711, 1537, 1921, 3217, 4237, 26721, 31297, 58101, 155251, 225111, 398359, 472099, 503479, 543049, 1272457, 1338001, 1943337 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..24.` `Ray Ballinger, Proth Search Page` `Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300` `Y. Gallot, Proth.exe: Windows Program for Finding Large Primes` `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: A125968 A147068 A147012 * A063486 A070423 A018882` `Adjacent sequences: A032391 A032392 A032393 * A032395 A032396 A032397`
	KEYWORD	`nonn`
	AUTHOR	`James R. Buddenhagen`
	EXTENSIONS	`More terms from Hugo Pfoertner, Jun 20 2003` `More terms (from http://www.prothsearch.net/riesel.html), Joerg Arndt, Apr 07 2013`
	STATUS	`approved`

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Last modified June 18 22:24 EDT 2013. Contains 226356 sequences.