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A255921
Bases b for which no primes p with p < b exist such that p is a base-b Wieferich prime.
12
2, 3, 4, 6, 11, 12, 14, 15, 16, 20, 34, 36, 39, 47, 52, 56, 58, 59, 66, 72, 83, 84, 86, 87, 88, 90, 92, 95, 96, 102, 103, 104, 106, 108, 111, 114, 119, 123, 135, 139, 140, 142, 144, 156, 159, 160, 162, 167, 171, 175, 180, 183, 186, 187, 194, 198, 200, 203, 204
OFFSET
1,1
COMMENTS
Numbers b such that A255920(b) = 0.
Complement of A273786. - Felix Fröhlich, Dec 03 2020
LINKS
PROG
(PARI) is(b) = forprime(p=1, b-1, if(Mod(b, p^2)^(p-1)==1, return(0))); 1
CROSSREFS
KEYWORD
nonn
AUTHOR
Felix Fröhlich, Mar 11 2015
STATUS
approved