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A097480
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Positive integers n such that 2n-15 is prime.
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21
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9, 10, 11, 13, 14, 16, 17, 19, 22, 23, 26, 28, 29, 31, 34, 37, 38, 41, 43, 44, 47, 49, 52, 56, 58, 59, 61, 62, 64, 71, 73, 76, 77, 82, 83, 86, 89, 91, 94, 97, 98, 103, 104, 106, 107, 113, 119, 121, 122, 124, 127, 128, 133, 136, 139, 142, 143, 146, 148, 149, 154, 161, 163
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OFFSET
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1,1
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LINKS
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FORMULA
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Half of p+15 where p is a prime greater than 2.
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MATHEMATICA
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Select[Range[9, 200], PrimeQ[2#-15]&] (* Harvey P. Dale, Apr 04 2021 *)
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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Douglas Winston (douglas.winston(AT)srupc.com), Sep 19 2004
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STATUS
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approved
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