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A097069
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Positive integers n such that 2n - 9 is prime.
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22
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6, 7, 8, 10, 11, 13, 14, 16, 19, 20, 23, 25, 26, 28, 31, 34, 35, 38, 40, 41, 44, 46, 49, 53, 55, 56, 58, 59, 61, 68, 70, 73, 74, 79, 80, 83, 86, 88, 91, 94, 95, 100, 101, 103, 104, 110, 116, 118, 119, 121, 124, 125, 130, 133, 136, 139, 140, 143, 145, 146, 151, 158, 160
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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+9 where p is a prime greater than 2.
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MATHEMATICA
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PROG
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(Magma) [n: n in [6..160] | IsPrime(2*n-9)]; // Bruno Berselli, Mar 05 2011
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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 15 2004
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STATUS
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approved
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