1st PRP for 2^n-12749.

Sieved to P=200G.

Primality testing 2^58752-12749 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 13
Running N+1 test using discriminant 53, base 2+sqrt(53)
Calling N+1 BLS with factored part 0.04% and helper 0.01% (0.12% proof)
2^58752-12749 is Fermat and Lucas PRP! (170.7986s+0.0237s)

To be completed...