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Williams primes of the form 21•22ⁿ+1

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Current data

Base :	22
Count :	11
Max n :	25,000
Date :	2018-03-17

1, 9, 53, 261, 1491, 2120, 2592, 6665, 9460, 15412, 24449

History

2018-03-17: Checked to n = 25000, Eric Chen
2016: Checked to n = 1000, Mauro Fiorentini

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Williams prime MP