Generalized repunit

Open WinPFGW Version 1.30 - PFGW Version 1.2.0 for Windows [FFT v23.8]

(136^6067+1)/137 is 3-PRP! (16.7459s+0.3194s) (2008-10-31, 10h41m UTC)

Additional tests:
(136^6067+1)/137 is 2-PRP! (28.6924s+0.0006s)
(136^6067+1)/137 is 5-PRP! (22.3991s+0.0003s)
(136^6067+1)/137 is 7-PRP! (27.9367s+0.0003s)
(136^6067+1)/137 is 11-PRP! (22.1882s+0.0002s)

To be completed...