Generalized Woodall primes of the form n•6n-1

Current data

Base : 6 Count : 23 Max n : 876,000 Date : 2015-03-25

1, 2, 3, 19, 20, 24, 34, 77, 107, 114, 122, 165, 530, 1999, 4359, 11842, 12059, 13802, 22855, 41679, 58185, 145359, 249987

Remarks :

The sequence A059675 in OEIS See early history at Generalized Woodall news, Generalized Woodall primes, & Generalized Woodall completed ranges.

History

• 2015-03-25: Checked n = 250000 - 876000, Steven Harvey
• 2014-07-10: Reserved by Steven Harvey for n = 250000 - 1000000
• 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
• 2012-10-10: Checked to n = 25000, Thomas Ritschel
• 2010-12-29: Checked n = 208000 - 250000, Steven Harvey
• 2010-12-29: Found n = 249987, Steven Harvey
• 2010-11-09: Reserved by Steven Harvey to n = 250000
• 2010-11-01: Checked n = 5 - 4000, Steven Harvey, double-check
• 2008-11-30: Checked n = 155700 - 199700, Geoffrey Reynolds
• 2008-09-25: Checked n = 100000 - 155700, Geoffrey Reynolds
• 2008-09-16: Found n = 145359, Geoffrey Reynolds
• 2008-08-20: Reserved by Geoffrey Reynolds for n = 100000 - 199700
• 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
• 2004-12-29?: Checked n = 199700 - 208000, Predrag Minovic
• 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
• 2004-12-21: Checked n = 5 - 5000, Mark Rodenkirch
• 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
• 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
• 2004-10-27: Reserved by Predrag Minovic for n = 205000 - 220000
• 2004-10-27: Checked n = 70000 - 100000, 200000 - 205000, Predrag Minovic
• 2004-08-24: Reserved by Predrag Minovic to n = 100000
• 2003-12-17: Found n = 58185, Steven Harvey
• 2002-11-25: Found n = 41679, Steven Harvey
• 2000-04-17: Found n = 22855, Ray Ballinger
• 2000-03-31: Found n = 13802, Ray Ballinger
• 2000-02-05: Found n = 4359, Joe DeMaio