OFFSET
1,2
COMMENTS
Is a(n)/(n*log(n)*log(log(n))) bounded?
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[1000], PowerMod[2, # - 1, # + 2] == 1 &] (* Amiram Eldar, Mar 30 2021 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Apr 09 2003
STATUS
approved