Riesel primes of the form 207•2n-1

Reserved! This sequence is currently reserved by: Steven Tjung

Current data

k , b : 207 , {{{Rb}}} Count : 37 Nash : 1798 Max n : 2,000,000 Date : 2016-01-27 Reserved : Steven TjungSteven Tjung/Reserved

2, 9, 12, 17, 20, 21, 50, 53, 132, 168, 341, 360, 381, 501, 1065, 1169, 1545, 2109, 2520, 2661, 3149, 4077, 11252, 21588, 21692, 39509, 52685, 67196, 87708, 232436, 372312, 417818, 481385, 507833, 643478, 912512, 1453970

[[Category:Riesel {{{Rb}}}|#.....00207]]

History

• 2016-01-27: Checked to n = 2000000, Steven Tjung
• 2014-01-13: Checked to n = 1730000, Steven Tjung
• 2014-09-13: Checked to n = 1700000, Steven Tjung
• 2014-02-03: Checked to n = 1590000, Steven Tjung
• 2013-11-06: Found n = 1453970, Steven Tjung
• 2013-08-22: Checked to n = 1342000, Steven Tjung
• 2013-04-05: Checked to n = 1200000, Steven Tjung
• 2012-11-03: Checked to n = 1100000, Steven Tjung
• 2012-10-19: Checked to n = 1084000, Steven Tjung
• 2012-08-19: Checked to n = 1030000, Steven Tjung
• 2009-12-05: none, Steven Tjung
• 2009-10-06: Checked to n = 1000000, Steven Tjung
• 2009-05-15: Checked to n = 925000, Steven Tjung
• 2009-05-14: Found n = 912512, Steven Tjung
• 2009-04-06: Checked to n = 900000, Steven Tjung
• 2009-02-12: Checked to n = 845000, Steven Tjung
• 2008-01-31: Checked to n = 704000, Steven Tjung
• 2008-01-04: Checked to n = 662000, Steven Tjung
• 2007-12-08: Checked to n = 646000, Steven Tjung
• 2007-12-07: Found n = 643478, Steven Tjung
• 2007-11-01: none, Steven Tjung
• 2007-07-13: Checked to n = 586000, Steven Tjung
• 2007-07-13: Checked to n = 583000, Steven Tjung
• 2007-05-14: Found n = 507833, Steven Tjung
• 2007-05-01: Found n = 481385, Steven Tjung
• 2007-03-16: Found n = 417818, Steven Tjung
• 2007-03-15: Found n = 372312, Steven Tjung
• 2004-08-05: Found n = 232436, Mark Anderson
• 1989: Found n = 67196, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown