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A057189 Numbers n such that (23^n+1)/24 is a prime. +0
2
11, 13, 67, 109, 331, 587 (list; graph; listen)
OFFSET

1,1

COMMENT

Some of the larger terms may only correspond to probable primes.

LINKS

H. Dubner and T. Granlund, Primes of the Form (b^n+1)/(b+1), J. Integer Sequences, 3 (2000), #P00.2.7.

CROSSREFS

Sequence in context: A027450 A036295 A132201 this_sequence A072580 A116436 A056446

Adjacent sequences: A057186 A057187 A057188 this_sequence A057190 A057191 A057192

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Sep 15 2000

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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