- n=200-300k, 18k left (740, 1578, 2624, 3552, 4148, 4338, 4954, 6282, 7528, 7886, 9746, 10234, 10682, 11114, 12262, 13326, 13666, 13828)
- runtime 46min-1h48min (AVX@3.8Ghz)

5138*477^52907-1 found by vaughan
10598*477^53150-1 found by Ralfy
6694*477^54537-1 found by vaughan
5240*477^54988-1 found by vaughan
490*477^55305-1 found by vaughan
5534*477^55864-1 found by LCB001
11834*477^60299-1 found by Ralfy
3948*477^68190-1 found by Ralfy
6236*477^68802-1 found by Ralfy
2114*477^70833-1 found by LCB001
5502*477^70937-1 found by ardo
9694*477^75892-1 found by Ralfy
7198*477^82440-1 found by taurec
7248*477^99452-1 found by vaughan
3642*477^107208-1 found by happy5214
1036*477^120813-1 found by Vato
1036*477^132507-1 found by Science United
3642*477^169241-1 found byzlodeck
5294*477^184644-1 found by Science United
6898*477^206306-1 found by Howard
12668*477^219047-1 found by Neriyah
1578*477^251432-1 found by Science United (TOP5000)
12124*477^299035-1 found by entity (TOP5000)