Generalized Woodall primes of the form n•14n-1

Current data

Base : 14 Count : 15 Max n : 1,600,000 Date : 2023-08-10

1, 3, 7, 98, 104, 128, 180, 834, 1633, 8000, 28538, 46605, 131941, 147684, 433734

Remarks :

The sequence A299377 in OEIS See early history at Generalized Woodall news, Generalized Woodall primes, & Generalized Woodall completed ranges.

History

• 2023-08-10: none, Ryan Propper, released
• 2023-04-29: Checked n = 1000000 - 1600000, Ryan Propper
• 2023-04-19: Reserved by Ryan Propper to n = 1600000
• 2023-04-09: Checked n = 500000 - 1000000, Ryan Propper
• 2023-04-01: Reserved by Ryan Propper to n = 1000000
• 2015-11-02: Checked n = 250000 - 500000, Steven Harvey
• 2015-10-16: Found n = 433734, Steven Harvey
• 2015-04-28: Reserved by Steven Harvey to n = 500000
• 2014-03-13: Checked n = 4000 - 25000, Steven Harvey, double-check n = 4000 - 10000
• 2011-04-11: Checked n = 200000 - 250000, Steven Harvey
• 2011-02-25: Reserved by Steven Harvey for n = 200000 - 250000
• 2010-11-01: Checked n = 13 - 4000, Steven Harvey, double-check
• 2010-06-07: Checked n = 150000 - 200000, Mark Rodenkirch
• 2010-05-20: Checked n = 47700 - 150000, Mark Rodenkirch
• 2010-05-20: Found n = 147684, Mark Rodenkirch
• 2010-05-17: Found n = 131941, Mark Rodenkirch
• 2010-05-10: Reserved by Mark Rodenkirch to n = 200000
• 2007-09-23: Checked n = 45000 - 47700, Kimmo Herranen
• 2007-09-23: Found n = 46605, Kimmo Herranen
• 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
• 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
• 2004-12-21: Checked n = 13 - 5000, Mark Rodenkirch
• 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
• 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
• 2003-01-15: Found n = 28538, Steven Harvey
• 2000-03-20: Found n = 8000, Dirk Augustin
• 1997-03-03: Found n = 1633, Carlos Rivera