- n=100-300k, 12k left (542, 1280, 5474, 7634, 10154, 12494, 12912, 13412, 13838, 15942, 16712, 21422)
- runtime 8min34s-1h33min (AVX@3.8Ghz)

1862*841^25236-1 found by cpuid
13838*841^26833-1 found by Senilix
22412*841^26840-1 found by Extra Ball
6894*841^36725-1 found by Adrian Schori
17244*841^56627-1 Extra Ball
23648*841^39923-1 found by Uli2*
1644*841^44888-1 found by Joe
8700*841^46497-1 found by morgan
22218*841^61289-1 found by Odicin
4442*841^92170-1 found by Bazooka_CZ
9714*841^116064-1 found by emoga
16604*841^125777-1 found by taurec
19308*841^146474-1 found by KySU
11480*841^181102-1 found by Vato
5732*841^194967-1 found by mikey (TOP5000)