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A123988 Primes p such that 2^x = 3 (mod p) has no solutions. 2
3, 7, 17, 31, 41, 43, 47, 71, 73, 79, 89, 97, 103, 109, 113, 127, 137, 151, 157, 167, 191, 193, 199, 223, 229, 233, 239, 241, 251, 257, 263, 271, 277, 281, 283, 307, 311, 313, 331, 337, 353, 359, 367, 383, 397, 401, 409, 431, 433, 439, 449, 457, 463, 479, 487, 499, 503, 521, 569, 571, 577, 593, 599 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Such primes cannot divide solutions to 2^m = 3 (mod m) (see A050259).

LINKS

Table of n, a(n) for n=1..63.

J. K. Crump, Number Theory Web.

CROSSREFS

Cf. A050259, A127437 (complement in the primes)

Sequence in context: A079779 A083991 A228567 * A006628 A068682 A292446

Adjacent sequences:  A123985 A123986 A123987 * A123989 A123990 A123991

KEYWORD

nonn

AUTHOR

Artur Jasinski, Nov 23 2006

EXTENSIONS

Edited by Max Alekseyev, Jan 14 2007

Corrected by Max Alekseyev, Jun 08 2011

STATUS

approved

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Last modified September 22 01:44 EDT 2020. Contains 337275 sequences. (Running on oeis4.)