Riesel primes of the form 12217•2n-1

Reserved! This sequence is currently reserved by: Norman D. Powell

Current data

k , b : 12217 , {{{Rb}}} Count : Attention! Parameter RCount=21 not given! Nash : 650 Max n : 800,000 Date : 2020-04-21 Reserved : Norman D. PowellNorman D. Powell/Reserved

21, 37, 61, 85, 709, 829, 1401, 1909, 2481, 4041, 5437, 8785, 17485, 30817, 57181, 69697, 72241, 78921, 357141, 455125, 525957

[[Category:Riesel {{{Rb}}}|#.....12217]][[Category:Riesel {{{Rb}}} Low-weight|#.....12217]]

History

• 2020-04-21: Checked to n = 800000, Norman D. Powell
• 2020-04-19: Checked to n = 600000, Norman D. Powell
• 2020-04-16: Checked to n = 400000, Norman D. Powell
• 2020-04-13: Reserved by Norman D. Powell
• 2013-10-16: Checked to n = 360000, Alexander Jones
• 2011-11-23: Checked to n = 20000, Thomas Ritschel
• 2008-05-05: Found n = 357141, Chris Chatfield