Generalized Woodall primes of the form n•72n-1

Current data

ASCII format : n*72^n-1 Base : 72 Count : 18 Max n : 200,000 Date : 2024-10-25

1, 12, 17, 20, 49, 102, 222, 295, 778, 1449, 2721, 2985, 6492, 9144, 23560, 48820, 83660, 193558

History

• 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 2014-03-13: Checked to n = 25000, Steven Harvey
• 2013-10-29: Checked n = 70044 - 83000, 86000 - 126000, 127151 - 200000, Maik Gruenewald
• 2013-10-08: Found n = 193558, Maik Gruenewald
• 2013-05-05: Reserved by Maik Gruenewald to n = 200000
• 2012-10-10: Checked to n = 25000, Thomas Ritschel
• 2010-11-01: Checked n = 71 - 4000, Steven Harvey, double-check
• 2004-09-15: Checked n = 83000 - 86000, 126000 - 127150, Thomas Wolter, released
• 2003-09-30: Found n = 83660, Thomas Wolter
• 2003: Checked to n = 70044, Thomas Wolter
• 2003-07-11: Found n = 48820, Thomas Wolter
• 2003-06-03: Found n = 23560, Thomas Wolter
• 2002-12: Checked n = 71 - 4096, Mark Rodenkirch
• 2000-04-12: Found n = 6492, Joe DeMaio
• 2000-02-04: Found n = 2985, Joe DeMaio
• 2000-02-04: Found n = 2721, Joe DeMaio
• 2000-01-30: Found n = 1449, Joe DeMaio