- n=25-100k, 54k left (233, 258, 581, 811, 989, 1478, 1877, 2319, 2466, 2640, 2712, 2872, 2922, 2959, 3341, 3394, 3645, 3908, 3974, 4003, 4054, 4135, 4291, 4380, 4523, 4726, 4784, 4831, 4987, 5233, 5364, 5420, 5857, 6265, 6437, 6453, 6526, 6531, 6603, 6642, 6731, 6745, 6787, 6874, 6983, 7164, 7325, 7394, 7795, 7912, 7944, 8148, 8324, 9020)
- runtime 34s-13min (AVX@3.8Ghz)

8046*840^27514+1 found by rebirther
2488*840^27989+1 found by rebirther
5279*840^28852+1 found by Pascal666
1594*840^29507+1 found by [VENETO] sabayonino
6761*840^29580+1 found by vaughan
6089*840^34941+1 found by rebirther
585*840^37090+1 found by rebirther
3704*840^37387+1 found by vaughan
5895*840^37794+1 found by UofS-Computer-Science
5930*840^39961+1 found by [AF>Libristes] Dudumomo
3935*840^44695+1 found by Ralfy
318*840^44751+1 found by [AF>Libristes] Dudumomo
3856*840^49531+1 found by [AF>Libristes] Dudumomo
5182*840^49799+1 found by Mumps [MM]
3220*840^50514+1 found by damotbe
1451*840^51944+1 found by UofS-Computer-Science
5772*840^70860+1 found by [AF>Libristes] Dudumomo
7773*840^73438+1 found by Ralfy
217*840^73775+1 found by Buckey
8295*840^80068+1 found by [AF>WildWildWest]Sebastien
2517*840^82807+1 found by UofS-Computer-Science
7019*840^85806+1 found by UofS-Computer-Science
412*840^94384+1 found by Ralfy