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A105772
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Numbers k such that 7*k + 2 is prime.
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9
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0, 3, 5, 11, 15, 21, 23, 27, 33, 45, 47, 51, 53, 57, 63, 65, 71, 77, 81, 93, 101, 107, 117, 123, 125, 131, 135, 147, 155, 161, 167, 173, 183, 185, 195, 197, 201, 203, 207, 213, 221, 231, 251, 255, 257, 267, 273, 285, 287, 291, 293, 297, 305, 311, 315, 317, 333
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OFFSET
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1,2
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LINKS
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EXAMPLE
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If k=0, then 7*k + 2 = 2 (prime).
If k=63, then 7*63 + 2 = 443 (prime).
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MATHEMATICA
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Select[Range[0, 500], PrimeQ[7#+2]&] (* Harvey P. Dale, Apr 21 2011 *)
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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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