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Williams primes of the form 267•268^{n}1
Current data


History
 20221031: Checked to n = 500000, Conjectures 'R Us, released
 20190803: Checked to n = 400000, Conjectures 'R Us
 20131112: Checked to n = 200000, Steven Harvey
 20110809: Checked to n = 100000, Steven Harvey
 ?: Checked to n = 512, Steven Harvey