OFFSET
1,1
COMMENTS
EXAMPLE
2047=6*341+1; 2^2046 == 1 (mod 2047); 2^340 == 1 (mod 341).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Alzhekeyev Ascar M, Jan 24 2014
EXTENSIONS
a(4) from Max Alekseyev, May 28 2014
STATUS
approved