Found with PFGW Version 3.6.0

97^12503-96 is 2-PRP! (8.6439s+0.0025s)
97^12503-96 is 3-PRP! (8.6835s+0.0030s)
97^12503-96 is 5-PRP! (8.6804s+0.0023s)
97^12503-96 is 7-PRP! (8.6757s+0.0025s)
97^12503-96 is 11-PRP! (8.6380s+0.0026s)

Primality testing 97^12503-96 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 11, base 1+sqrt(11)
Calling N-1 BLS with factored part 0.19% and helper 0.01% (0.58% proof)
97^12503-96 is Fermat and Lucas PRP! (64.7256s+0.0022s)

To be completed...