Williams primes of the form 22•21n-1

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Current data

Base : 21
Count : 16
Max n : 25,000
Date : 2018-03-17
1, 8, 13, 26, 355, 985, 1347, 1918, 1968, 2802, 3310, 8113, 8728, 10906, 15042, 24051

History