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A108027
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Numbers n such that 137*n + 139 is prime.
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3
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0, 12, 20, 26, 32, 54, 66, 92, 96, 104, 126, 132, 140, 144, 152, 174, 176, 180, 182, 186, 194, 200, 204, 210, 222, 230, 260, 264, 276, 284, 290, 302, 306, 336, 342, 360, 384, 390, 402, 404, 414, 416, 420, 480, 482, 486, 500, 510, 536, 546, 566, 570, 582, 584
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OFFSET
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1,2
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COMMENTS
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137 and 139 are twin primes.
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LINKS
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EXAMPLE
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If n=104 then 137*n + 139 = 14387 (prime).
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MAPLE
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a:=proc(n) if isprime(137*n+139)=true then n else fi end: seq(a(n), n=0..700); # Emeric Deutsch
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MATHEMATICA
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Select[Range[0, 600], PrimeQ[137#+139]&] (* Harvey P. Dale, Apr 03 2017 *)
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PROG
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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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