Riesel primes of the form 47•2ⁿ-1

Reserved! This sequence is currently part of Multi Reservation 4: RPS Megabit Drive 1.

Current data

`k` , `b` :	47 , 2
Type :	Low
Count :	20
Nash :	922
Max `n` :	3,100,000
Date :	2020-11-12
Reserved :	Riesel Prime SearchRiesel Prime Search/Reserved

4, 14, 70, 78, 1374, 1824, 2158, 2654, 4494, 9598, 10068, 11524, 15128, 55408, 87324, 450470, 540494, 695384, 695724, 1025950

Remarks :

The sequence A050549 in OEIS

2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
2018-04-11: Checked n = 1000000 - 1653000, 1692000 - 3000000, RPS Megabit Drive 1
2011-01-30: Found n = 1025950, Predrag Minovic, RPS Megabit Drive 1
2011-01-26: Reserved by RPS Megabit Drive 1 for n > 1000000
2010-04-30: Sieving, James P. Burt
2009-01-09: Checked n = 950000 - 998779, 1140064 - 1142960, 1652060 - 1692888, 1967588 - 1968430, Peter Benson
2008-11-11: Checked to n = 1000000, Gary Barnes
2008-11-05: Checked to n = 700000, Gary Barnes
2008-10-31: Found n = 695724, Gary Barnes
2008-10-31: Found n = 695384, Gary Barnes
2008-10-31: Checked to n = 541000, Gary Barnes
2008-10-31: Found n = 540494, Gary Barnes
2008-09-07: Reserved by Gary Barnes
2006-02-06: Checked n = 100000 - 110000, Thomas Ritschel, double-check
2004-11-28: Checked to n = 500000, Jeffrey Sax
2004-11-02: Found n = 450470, Jeffrey Sax
2004-08-01: Checked to n = 210000, Steven Harvey, released
2004-07-26: Reserved by Steven Harvey from n=200000