1,1

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

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

H. Lifchitz, Mersenne and Fermat primes field

Cf. A071381.

Sequence in context: A047652 A020357 A050967 this_sequence A031928 A095649 A142524

Adjacent sequences: A071379 A071380 A071381 this_sequence A071383 A071384 A071385

nonn

Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 22 2002

10159 from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008