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A244546
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Wieferich primes p to base p-th prime.
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3
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OFFSET
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1,1
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COMMENTS
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No further terms up to 10^6.
No further terms up to 10^11. - Luke March, Jul 16 2014
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LINKS
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EXAMPLE
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a(1) = 997, since prime(997) = 7883 and 7883^996 % 997^2 = 1.
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PROG
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(PARI) forprime(p=2, 10^6, q=prime(p); if(Mod(q, p^2)^(p-1)==1, print1(p, ", ")))
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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