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A216890
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Numbers n such that 14*3^n + 1 is prime.
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1
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1, 2, 3, 18, 22, 26, 27, 33, 39, 57, 62, 94, 145, 246, 390, 398, 402, 571, 690, 906, 1062, 1254, 1367, 1627, 1954, 2409, 3107, 14754, 15378, 24219, 46138, 98883, 161178
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OFFSET
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1,2
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COMMENTS
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The next terms are > 6000.
All terms are verified primes (i.e., not probable primes). - Robert Price, Mar 16 2014
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LINKS
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MATHEMATICA
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Select[Range[4000], PrimeQ[14 3^# + 1] &]
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PROG
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(Magma) [n: n in [0..4000] | IsPrime(14*3^n+1)];
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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