Plateau and Depression Prime (PDP)
http://www.worldofnumbers.com/deplat.htm

PFGW Version 3.4.6.64BIT.20110307.Win_Dev [GWNUM 26.5]
Primality testing 8*10^119930-3 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 5, base 5+sqrt(5)
Calling N+1 BLS with factored part 0.00% and helper 0.00% (0.01% proof)
8*10^119930-3 is Fermat and Lucas PRP! (1506.0321s+0.0031s)
Done.

To be completed...