Found with PFGW Version 3.8.0

170^13451-13451^170 is 2-PRP! (16.0096s+0.0066s)
170^13451-13451^170 is 3-PRP! (15.9590s+0.0067s)
170^13451-13451^170 is 5-PRP! (15.9872s+0.0070s)
170^13451-13451^170 is 7-PRP! (16.0572s+0.0075s)
170^13451-13451^170 is 11-PRP! (16.0394s+0.0070s)

Primality testing 170^13451-13451^170 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N-1 test using base 7
Running N-1 test using base 11
Running N+1 test using discriminant 19, base 1+sqrt(19)
Calling N-1 BLS with factored part 0.06% and helper 0.03% (0.20% proof)
170^13451-13451^170 is Fermat and Lucas PRP! (111.7799s+0.0039s)

To be completed...