Message boards : Science : base S342 (5k)
- n=300-500k, 5k left (36, 204, 341, 468, 491) - runtime 1h09min-3h13min (AVX@3.8Ghz) 71*342^57384+1 found by MarkRBright 27*342^232379+1 found by LennStar (TOP5000)