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A050841 Numbers n such that 179*2^n-1 is prime. +0
1
8, 68, 108, 20780, 25488, 25656, 38684, 57096, 159108, 236856, 490800, 507816 (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

Adjacent sequences: A050838 A050839 A050840 this_sequence A050842 A050843 A050844

Sequence in context: A091645 A015574 A000434 this_sequence A068766 A054915 A073555

KEYWORD

hard,nonn

AUTHOR

njas, Dec 29 1999

EXTENSIONS

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.


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