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Riesel primes of the form 319•2^{n}1
Reserved! This sequence is currently part of Multi Reservation 26: NPLB Drive 19. 
Current data


History
 20230307: Reserved by NPLB Drive 19, for 3000000<n<4000000
 20220603: Checked to n = 3000000, NPLB Drive 15, released
 20181007: Found n = 2498685, Ricky L. Hubbard
 20150526: Found n = 2130729, Gary Barnes, found by (composite) 20150408
 20141229: Reserved by NPLB Drive 15, for n=20000003000000
 20130704: Checked to n = 2000000, Ian M. Gunn, released
 20130617: Found n = 1797261, Ian M. Gunn
 20130613: Found n = 1740047, Ian M. Gunn
 20130523: Found n = 1344059, Ian M. Gunn
 20130520: Reserved by Ian M. Gunn for 1300000<n<2000000
 20111129: Checked to n = 1300000, Johnathan Chu
 20111023: Checked to n = 1270000, Johnathan Chu
 20110626: Checked to n = 1190000, Johnathan Chu
 20110417: Checked to n = 1140000, Johnathan Chu
 20110311: Checked to n = 1110000, Johnathan Chu
 20110209: Checked to n = 1080000, Johnathan Chu
 20110111: Checked to n = 1050000, Johnathan Chu
 20101207: Reserved by Johnathan Chu, to n=1100000
 20101127: Reserved by Johnathan Chu, for 1000000<n<1020000
 20090625: Checked to n = 1000000, Sven Stockmann, released
 20090621: Checked to n = 975000, Sven Stockmann
 20090617: Checked to n = 950000, Sven Stockmann
 20090612: Checked to n = 925000, Sven Stockmann
 20090531: Checked to n = 900000, Sven Stockmann
 20090528: Checked to n = 875000, Sven Stockmann
 20090526: Checked to n = 847000, Sven Stockmann
 20090503: Checked to n = 719000, Sven Stockmann and 850000<n<862000 done
 20090428: Reserved by Sven Stockmann, for 700000<n<1000000
 20090327: Checked to n = 700000, Gary Barnes, released
 20090322: Checked to n = 635000, Gary Barnes
 20090321: Found n = 629783, Gary Barnes
 20090319: Found n = 671009, Gary Barnes
 20090314: Reserved by Gary Barnes, for 600000<n<700000
 20081110: Checked to n = 600000, NPLB Drive 3, released
 20080323: Found n = 404643, Carlos Eduardo Pinho
 20080306: 286103 confirmed, James P. Burt
 20080301: Reserved by NPLB Drive 3, for 260000<n<600000
 20050318: Found n = 254747, Jun Tajima
 20050114: Found n = 216579, Steven Harvey
 20010716: Found n = 85287, Sander Hoogendoorn
 20010709: Found n = 75213, Sander Hoogendoorn