Generalized Cullen primes of the form n•42n+1

Current data

ASCII format : n*42^n+1 Base : 42 Count : 9 Max n : 200,000 Date : 2024-10-25

1, 2, 11, 20, 8301, 14421, 25849, 37208, 52296

History

• 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 2023-05-07: Checked n = 100001 - 200000, Mark Rodenkirch, double-check n = 100001 - 170000, released
• 2023-04-17: Checked n = 2 - 100000, Mark Rodenkirch, double-check
• 2023-04-01: Reserved by Mark Rodenkirch to n = 200000
• 2011: Checked n = 62692 - 170000, Bryan Koen
• 2009: Checked n = 3607 - 62691, Günter Löh
• 2006-01-08: Found n = 52296, Günter Löh
• 2004-01-08: Found n = 37208, Günter Löh
• 2001-07-21: Found n = 25849, Günter Löh
• 2000-12: Found n = 8301, Günter Löh
• 2000-11-16: Found n = 14421, Günter Löh
• 2000: Checked n = 1 - 3607, Wilfrid Keller