Verified Fermat and Lucas PRP by pfgw.

Primality testing 4*10^51511+3*R(51511) [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 5, base 4+sqrt(5)
Calling N+1 BLS with factored part 0.02% and helper 0.01% (0.06% proof)
4*10^51511+3*R(51511) is Fermat and Lucas PRP! (898.7408s+0.0062s)

To be completed...