Williams primes of the form 20•21n+1

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Current data

Base : 21
Count : 21
Max n : 25,000
Date : 2018-03-17
1, 2, 3, 4, 12, 17, 38, 54, 56, 123, 165, 876, 1110, 1178, 2465, 3738, 7092, 8756, 15537, 19254, 24712

History