Found with PFGW Version 3.7.5

549^9938-9938^549 is 2-PRP! (13.9987s+0.0019s)
549^9938-9938^549 is 3-PRP! (14.0296s+0.0018s)
549^9938-9938^549 is 5-PRP! (14.0310s+0.0019s)
549^9938-9938^549 is 7-PRP! (14.0137s+0.0018s)
549^9938-9938^549 is 11-PRP! (14.0277s+0.0018s)

Primality testing 549^9938-9938^549 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N-1 test using base 7
Running N+1 test using discriminant 19, base 2+sqrt(19)
Calling N+1 BLS with factored part 0.04% and helper 0.02% (0.14% proof)
549^9938-9938^549 is Fermat and Lucas PRP! (83.3677s+0.0019s)

To be completed...