Williams primes of the form 22•23n-1

Reserved! This sequence is currently reserved by: Richard Kapek

Current data

Base : 23 Count : 8 Max n : 400,000 Date : 2024-09-15 Reserved : Richard KapekRichard Kapek/Reserved

55, 103, 115, 131, 535, 1183, 9683, 149027

History

• 2024-09-15: Checked n = 2 - 400000, Richard Kapek, double-check n = 2 - 100000
• 2024-09-10: Checked n = 2 - 100000, Mark Rodenkirch, double-check n = 2 - 25000, released
• 2024-08-31: Reserved by Richard Kapek for n = 2 - 1000000
• 2024-08-19: Reserved by Mark Rodenkirch for n = 2 - 100000
• 2018-03-17: Checked n = 1 - 25000, Eric Chen
• ?: Checked to n = 512, Steven Harvey