Found with PFGW Version 3.4.8

57^13402-56 is 2-PRP! (18.4016s+0.0059s)
57^13402-56 is 3-PRP! (31.6398s+0.0268s)
57^13402-56 is 5-PRP! (18.5944s+0.0212s)
57^13402-56 is 7-PRP! (31.2607s+0.0419s)
57^13402-56 is 11-PRP! (38.1294s+0.0069s)

Primality testing 57^13402-56 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N-1 test using base 13
Running N+1 test using discriminant 29, base 3+sqrt(29)
Calling N-1 BLS with factored part 0.07% and helper 0.00% (0.22% proof)
57^13402-56 is Fermat and Lucas PRP! (334.8359s+0.0369s)

To be completed...