Found with PFGW Version 3.6.0

1207^4226-4226^1207 is 2-PRP! (6.6600s+0.0018s)
1207^4226-4226^1207 is 3-PRP! (6.6740s+0.0034s)
1207^4226-4226^1207 is 5-PRP! (6.6620s+0.0032s)
1207^4226-4226^1207 is 7-PRP! (6.6298s+0.0017s)
1207^4226-4226^1207 is 11-PRP! (6.6583s+0.0033s)

Primality testing 1207^4226-4226^1207 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 11, base 1+sqrt(11)
Calling N-1 BLS with factored part 0.02% and helper 0.00% (0.06% proof)
1207^4226-4226^1207 is Fermat and Lucas PRP! (37.0879s+0.0020s)

To be completed...