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A283051
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Positive integers n such that none of the primes of the form k*2^n + 1 (with k odd) divide any Fermat number F(m) = 2^(2^m) + 1, m >= 0.
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0
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OFFSET
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1,1
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COMMENTS
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Conjecture: sequence is infinite.
a(5) >= 18.
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LINKS
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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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