- n=250-300k, 24k left (638, 1782, 2304, 3600, 3868, 5894, 6330, 6724, 7184, 7870, 8390, 8540, 8688, 9468, 9634, 10294, 10474, 10732, 12882, 14348, 14964, 14968, 14998, 16132)
- runtime 57min-1h23min(AVX@3.8Ghz)

6458*291^28053-1 found by Fornax
5738*291^30901-1 found by Mankka*
2482*291^32577-1 found by Mankka*
9374*291^35750-1 found by rebirther
11698*291^37258-1 found by vinn [Czech National Team]
8052*291^38094-1 found by Mankka*
8068*291^40647-1 found by [SG]GeraldF.
16300*291^46608-1 found by vinn [Czech National Team]
8514*291^49961-1 found by Fornax
11250*291^50912-1 found by rebirther
12552*291^50923-1 found by rebirther
2410*291^65589-1 found by Fornax
5608*291^70369-1 found by pschoefer
4454*291^70811-1 found by pschoefer
13360*291^72937-1 found by Woodles
7912*291^78780-1 found by jondi_hanluc
8292*291^81139-1 found by Tejas
5630*291^82805-1 found by Odicin
14000*291^110652-1 found by fzs600
4048*291^124454-1 found by fzs600
12574*291^133226-1 found by Ralfy
6058*291^171392-1 found by Hartmut
5910*291^172382-1 found by Doug
6058*291^186208-1 found by SkyHighWeFly
13798*291^188761-1 found by Ralfy
8248*291^199868-1 found by Doug
5818*291^208267-1 found by khs