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A057188 Numbers n such that (22^n+1)/23 is a prime. 1
3, 5, 13, 43, 79, 101, 107, 227, 353, 7393 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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: A172023 A188583 A178432 * A128548 A113606 A106879

Adjacent sequences:  A057185 A057186 A057187 * A057189 A057190 A057191

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 01:56 EST 2012. Contains 205860 sequences.