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A325884
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Bases b where exactly eight primes p with p < b exist such that p is a base-b Wieferich prime.
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9
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1693, 5937, 8201, 9035, 9066, 12943, 13499, 14773, 19065, 24841, 25298, 27382, 28601, 28657, 32074, 37993, 39789, 40276, 41749, 42893, 44425, 46307, 46657, 46924, 47899, 49099, 50471, 52757, 53576, 55737, 56026, 56193, 56645, 57221, 57853, 58445, 59216, 59249
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OFFSET
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1,1
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COMMENTS
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Numbers n such that A255920(n) = 8.
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LINKS
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PROG
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(PARI) is(n) = my(i=0); forprime(p=1, n-1, if(Mod(n, p^2)^(p-1)==1, i++)); i==8
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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