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A107305
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Numbers k such that 11*k - 13 is prime.
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1
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4, 6, 10, 16, 22, 24, 30, 36, 42, 60, 64, 70, 76, 84, 90, 94, 100, 102, 106, 120, 126, 132, 136, 142, 144, 150, 160, 172, 174, 184, 192, 196, 210, 214, 226, 232, 244, 246, 256, 270, 274, 276, 280, 282, 294, 304, 316, 322, 330, 340, 346, 354, 360, 366, 370, 372
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OFFSET
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1,1
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COMMENTS
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11 and 13 are twin primes.
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LINKS
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EXAMPLE
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If k=4, then 11*k - 13 = 31 (prime).
If k=60, then 11*k - 13 = 647 (prime).
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MATHEMATICA
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Select[Range[2, 400, 2], PrimeQ[11#-13]&] (* Harvey P. Dale, Jul 29 2016 *)
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PROG
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(Magma) [n: n in [2..100000] | IsPrime(11*n - 13)]; // Vincenzo Librandi, Nov 13 2010
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CROSSREFS
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Cf. A141856 (the resulting primes).
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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