Generalized Woodall primes of the form n•90n-1

Current data

ASCII format : n*90^n-1 Base : 90 Count : 12 Max n : 200,000 Date : 2023-07-15

1, 10, 19, 26, 37, 85, 130, 371, 516, 15853, 29838, 189639

History

• 2023-07-15: Checked n = 2 - 200000, Mark Rodenkirch, double-check n = 2 - 61000, released
• 2023-07-15: Found n = 189639, Mark Rodenkirch
• 2023-06-03: Reserved by Mark Rodenkirch to n = 200000
• 2014-03-13: Checked n = 4000 - 25000, Steven Harvey, double-check
• 2012?: Checked n = 26000 - 61000, James P. Burt
• 2011-11-22: Reserved by James P. Burt to n = 200000
• 2010-11-01: Checked n = 89 - 4000, Steven Harvey, double-check
• 2005-04-10: Found n = 29838, Peter Benson
• 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
• 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
• 2004-12-21: Checked n = 89 - 5000, Mark Rodenkirch
• 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
• 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
• 2004-06-21: Checked to n = 26000, Steven Harvey