1,1

Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300

Wilfrid Keller, List of primes k.2^n - 1 for k < 300

Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime

Kosmaj, Riesel list k<300.

Cf. A032361 23*2^n+1 is prime.

Sequence in context: A073167 A060202 A062624 this_sequence A068507 A133454 A061072

Adjacent sequences: A050534 A050535 A050536 this_sequence A050538 A050539 A050540

hard,nonn

njas, Dec 29 1999

More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), Jul 14 2004

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008