1,1

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

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

J. K. Crump, Number Theory Web.

Cf. A050259, A127437 (complement in the primes)

Sequence in context: A079779 A083991 A228567 * A006628 A068682 A292446

Adjacent sequences: A123985 A123986 A123987 * A123989 A123990 A123991

nonn

Artur Jasinski, Nov 23 2006

Edited by Max Alekseyev, Jan 14 2007

Corrected by Max Alekseyev, Jun 08 2011

approved