Generalized Woodall primes of the form n•12n-1

Current data

Base : 12 Count : 14 Max n : 1,600,000 Date : 2024-10-25

1, 6, 43, 175, 821, 910, 1157, 13748, 27032, 71761, 229918, 549721, 866981, 1405486

Remarks :

The sequence A299375 in OEIS

History

• 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 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
• 2023-04-12: Found n = 1405486, Ryan Propper
• 2023-04-09: Checked n = 500000 - 1000000, Ryan Propper
• 2023-04-08: Found n = 866981, Ryan Propper
• 2023-04-08: Found n = 549721, Ryan Propper
• 2023-04-01: Reserved by Ryan Propper to n = 1000000
• 2015-06-18: Checked n = 250000 - 500000, Steven Harvey
• 2015-04-28: Reserved by Steven Harvey to n = 500000
• 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
• 2012-10-10: Checked to n = 25000, Thomas Ritschel
• 2010-04-30: Checked n = 60000 - 249999, Lei Zhou
• 2010-11-01: Checked n = 11 - 4000, Steven Harvey, double-check
• 2008-12-26: Found n = 229918, Lei Zhou
• 2008-03-25: Found n = 71761, Lei Zhou
• 2008-03-25: Reserved by Lei Zhou to n = 100000
• 2007-07-08: Checked n = 45000 - 60000, 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 = 11 - 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: Found n = 27032, Steven Harvey
• 2000-08-03: Found n = 13748, Dirk Augustin