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A258933
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Numbers n such that 10^n + 109 is prime.
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1
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3, 5, 41, 357, 395, 479, 645, 2637, 8853, 11529, 20087, 27443, 30635
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OFFSET
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1,1
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LINKS
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EXAMPLE
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For n = 3, a(3) = 10^3 + 109 = 1109, which is prime.
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MATHEMATICA
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Select[Range[3000], PrimeQ[10^# + 109] &]
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PROG
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(Magma) [n: n in [1..400] | IsPrime(10^n+109)];
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CROSSREFS
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Cf. similar sequences listed in A258932.
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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