- n=100-300k, 21k left (646, 656, 1190, 1332, 1724, 1762, 1764, 1848, 1920, 1988, 2362, 2710, 2944, 3140, 3812, 4688, 4772, 5374, 5376, 7442, 7526)
- runtime 7min37s-1h37min (AVX@3.9Ghz)

6578*687^25881+1 found by [AF>France>Ouest>Normandie]The Stress Man (-:
3502*687^28751+1 found by Sabroe_SMC
6758*687^29936+1 found by Ralfy
2122*687^30262+1 found by Odicin
6288*687^33744+1 found by Lennart SM5YMT
128*687^33933+1 found by Lennart SM5YMT
6492*687^35107+1 found by Ralfy
4762*687^36466+1 found by Ralfy
4842*687^37820+1 found by Ralfy
2592*687^38008+1 found by [SG-FC]shka
92*687^42364+1 found by Lennart SM5YMT
5276*687^46476+1 found by Sabroe_SMC
964*687^46541+1 found by Ralfy
274*687^50407+1 found by Ralfy
2326*687^56447+1 found by Ralfy
1052*687^58291+1 found by Ralfy
4334*687^59737+1 found by Ralfy
382*687^73924+1 found by Ralfy
1678*687^93460+1 found by phaeton57
6892*687^95391+1 found by Ralfy
4600*687^97735+1 found by Ralfy
5502*687^99392+1 found by Ralfy
578*687^117530+1 found by grcpool.5
6200*687^150683+1 found by Neriyah
2822*687^156962+1 found by DukeBox
956*687^175923+1 found by DukeBox
2780*687^190190+1 found by Science United
7632*687^192792+1 found by Science United
7782*687^193231+1 found by Sightus@CAU
5870*687^201616+1 found by Sightus@CAU
5870*687^209493+1 found by Cluster Physik
2780*687^210015+1 found by G
7922*687^221730+1 found by Sightus@CAU
2020*687^240455+1 found by Science United
2822*687^249480+1 found by Sightus@CAU
2020*687^271475+1 found by Sightus@CAU
3998*687^283649+1 found by Sightus@CAU