1,1

J. Brillhart et al., Factorizations of b^n +- 1, Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 3rd edition, 2002.

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

Sequence in context: A060429 A052292 A154301 this_sequence A157467 A093343 A153685

Adjacent sequences: A057182 A057183 A057184 this_sequence A057186 A057187 A057188

nonn

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

26183 from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008