1st PRP for 2^n-476081.

Sieved to P=200G.

Primality testing 2^59898-476081 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 43
Running N+1 test using discriminant 61, base 2+sqrt(61)
Running N+1 test using discriminant 61, base 3+sqrt(61)
Calling N-1 BLS with factored part 0.05% and helper 0.03% (0.17% proof)
2^59898-476081 is Fermat and Lucas PRP! (304.3531s+0.0047s)

To be completed...