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Riesel primes of the form 20057•2ⁿ-1

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Current data

`k` , `b` :	20057 , 2
Count :	17
Nash :	1052
Max `n` :	1,000,000
Date :	2020-05-09

4, 16, 70, 130, 546, 1416, 1444, 2680, 8986, 19312, 20056^[1], 73804, 80104, 89314, 104980, 362194, 541636

Notes

↑ Near Woodall 20057•2²⁰⁰⁵⁶-1

History

2020-05-09: Checked to n = 1000000, Norman D. Powell, released
2020-05-06: Checked to n = 900000, Norman D. Powell
2020-05-04: Checked to n = 800000, Norman D. Powell
2020-05-02: Checked to n = 700000, Norman D. Powell
2020-05-01: Checked to n = 600000, Norman D. Powell
2020-04-29: Checked to n = 400000, Norman D. Powell
2020-04-28: Checked to n = 200000, Norman D. Powell
2020-04-20: Reserved by Norman D. Powell
2019-08-16: Checked to n = 25000, Alexander Jones
1998-07-03: Found n = 20056, Henri Lifchitz

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