1,1
Table of n, a(n) for n=1..30.
Ray Ballinger, Proth Search Page
Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300
Y. Gallot, Proth.exe: Windows Program for Finding Large Primes
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
Sequence in context: A185913 A077065 A131867 * A136838 A109378 A132149
Adjacent sequences: A032389 A032390 A032391 * A032393 A032394 A032395
nonn
James R. Buddenhagen
More terms (from http://www.prothsearch.net/riesel.html), Joerg Arndt, Apr 07 2013
approved