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A032494 Numbers n such that 235*2^n+1 is prime. 0
2, 4, 8, 10, 12, 14, 20, 22, 24, 32, 56, 76, 84, 86, 92, 118, 164, 382, 604, 1148, 1900, 2440, 2554, 2798, 3160, 6092, 7142, 14044, 14782, 21056, 24852, 29084, 44252, 46022, 101318 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

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 k*2^n-1 (or k*2^n+1) is prime

CROSSREFS

Sequence in context: A132190 A155037 A001770 * A125953 A047464 A189786

Adjacent sequences:  A032491 A032492 A032493 * A032495 A032496 A032497

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 09:00 EST 2012. Contains 205904 sequences.