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A217136
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Numbers k such that 3^k + 8 is prime.
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18
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1, 2, 4, 5, 8, 13, 14, 20, 38, 44, 77, 88, 124, 152, 244, 557, 2429, 4382, 6268, 18488, 75097, 81998, 96460, 143497
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OFFSET
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1,2
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COMMENTS
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LINKS
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MATHEMATICA
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Select[Range[0, 5000], PrimeQ[3^# + 8] &]
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PROG
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(PARI) for(n=1, 5*10^3, if(isprime(3^n+8), print1(n", ")))
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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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