- n=300-400k, 21k left (36, 1770, 4708, 5317, 6162, 6274, 7060, 7870, 8722, 9454, 11101, 12072, 13297, 13480, 14275, 14851, 15800, 17620, 18972, 19336, 19394)
- runtime 31-52min (AVX@3.8Ghz)

6101*60^100167-1 found by mmonnin
17185*60^116884-1 found by vaughan
5611*60^129082-1 found by The_Martin
6101*60^134079-1 found by Prescott
12479*60^145725-1 found by vaughan
18965*60^150468-1 found by Tim B
19397*60^163090-1 found by mmonnin
6101*60^188899-1 found by mmonnin
10249*60^192067-1 found by SkyHighWeFly
9212*60^199777-1 found by walli
12996*60^241023-1 found by walli
9881*60^313222-1 found by Doug (TOP5000)
12098*60^338568-1 found by JohnMD (TOP5000)
12061*60^388015-1 found by ChrisBigler (TOP5000)