OFFSET
1,1
COMMENTS
A set of primes is called the covering set for the Sierpiński number k if for every positive integer m there is at least one prime in the set which divides k*2^m + 1. Similarly, a set of primes is called the covering set for the Riesel number j if for every positive integer m there is at least one prime in the set which divides j*2^m - 1.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Arkadiusz Wesolowski, Mar 28 2023
STATUS
approved