Found with PFGW Version 3.6.0

1280^4133-4133^1280 is 2-PRP! (6.0598s+0.0018s)
1280^4133-4133^1280 is 3-PRP! (6.1022s+0.0016s)
1280^4133-4133^1280 is 5-PRP! (6.1149s+0.0018s)
1280^4133-4133^1280 is 7-PRP! (6.0734s+0.0031s)
1280^4133-4133^1280 is 11-PRP! (6.0809s+0.0014s)

Primality testing 1280^4133-4133^1280 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 7, base 6+sqrt(7)
Calling N+1 BLS with factored part 0.13% and helper 0.08% (0.48% proof)
1280^4133-4133^1280 is Fermat and Lucas PRP! (29.9649s+0.0014s)

To be completed...