- n=50-100k, 58k left (4248, 5293, 11646, 11818, 14658, 16165, 17067, 19042, 20110, 20238, 20598, 22252, 22525, 24108, 27166, 29730, 30633, 31180, 33018, 33703, 34662, 35698, 36330, 40003, 40983, 42657, 43702, 48010, 50002, 51486, 53953, 54801, 55278, 55486, 57541, 60072, 60507, 61267, 61377, 63432, 63621, 65350, 66583, 67540, 67818, 68241, 70743, 73137, 76308, 76447, 77733, 77887, 80146, 82363, 83845, 84316, 84802, 87936)
- runtime 2-12min (AVX@3.8Ghz)

53313*136^54451+1 found by Dario666
17761*136^54492+1 found by vaughan
38176*136^55560+1 found by [SG-FC]shka
57742*136^56317+1 found by [AT-Sollenau] Thomas Turk
25377*136^61632+1 found by Joe
54777*136^69465+1 found by Joe
54271*136^70410+1 found by ardo
4528*136^77633+1 found by Dario666
11425*136^78018+1 found by Johnny Rotten
89793*136^78866+1 found by Ralfy
71902*136^86837+1 found by ardo
36052*136^90860+1 found by Ralfy
42913*136^92663+1 found by Mumps [MM]
10183*136^93483+1 found by nenym
14797*136^96356+1 found by Mumps [MM]
52681*136^98043+1 found by ardo