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A050847 Numbers n such that 191*2^n-1 is prime. +0
1
226, 3594, 59770, 240802 (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 k*2^n-1 (or k*2^n+1) is prime

Kosmaj, Riesel list k<300.

CROSSREFS

Sequence in context: A156814 A031708 A031603 this_sequence A098247 A092994 A031513

Adjacent sequences: A050844 A050845 A050846 this_sequence A050848 A050849 A050850

KEYWORD

hard,nonn,bref

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 9 14:43 EST 2009. Contains 170430 sequences.


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