- n=25-100k, 15k left (2188, 3874, 9096, 9436, 9678, 11488, 11746, 15118, 17818, 18604, 19684, 21208, 21484, 23748, 24262)
- runtime 43s-10min (AVX@3.8Ghz)

7438*253^25111+1 found by Johnny Rotten
6136*253^25323+1 found by Johnny Rotten
7714*253^27882+1 found by Raspo
16128*253^29327+1 found by KWSN-SpongeBob SquarePants
4480*253^30715+1 found by Tarmo Ilves
8508*253^30715+1 found by Mumps [MM]
11428*253^30919+1 found by Adrian Schori
2788*253^31159+1 found by Raspo
6226*253^31288+1 found by Adrian Schori
21606*253^34127+1 found by LCB001
24990*253^35334+1 found by Raspo
7246*253^36400+1 found by KWSN-SpongeBob SquarePants
14350*253^37899+1 found by Tarmo Ilves
16434*253^41654+1 found by LCB001
4224*253^45262+1 found by LCB001
20956*253^47076+1 found by KWSN-SpongeBob SquarePants
16798*253^52832+1 found by Cruncher Pete [BlackOpsTeam]
13666*253^58159+1 found by Adrian Schori
2502*253^59748+1 found by Johnny Rotten
2566*253^62820+1 found by MarkRBright
13284*253^91465+1 found by Jaska*
23404*253^95194+1 found by Pete Broad