Williams primes of the form 19•18n-1

Current data

Base : 18 Count : 13 Max n : 200,000 Date : 2024-10-24

3, 4, 5, 7, 476, 572, 684, 865, 1240, 1945, 3907, 51524, 79569

History

• 2024-10-24: Checked n = 100000 - 200000, Richard Kapek, released
• 2024-10-12: Reserved by Richard Kapek for n = 100000 - 200000
• 2024-09-04: Checked n = 2 - 100000, Mark Rodenkirch, double-check n = 2 - 25000, released
• 2024-08-22: Reserved by Mark Rodenkirch for n = 2 - 100000
• 2018-03-09: Checked n = 1 - 25000, Eric Chen
• 2016: Checked n = 1 - 1000, Mauro Fiorentini