OFFSET
1,1
COMMENTS
For p>3, (2p-3)^(2p-2) - 1 is divisible by p.
Primes p such that 3^p == 3-2p (mod p^2).
No other terms below 10^11.
CROSSREFS
KEYWORD
hard,more,nonn
AUTHOR
Alexander Adamchuk, Jan 28 2009
EXTENSIONS
27544452149 from Max Alekseyev, Oct 14 2009
STATUS
approved