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A086477
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Primes p such that 128p+1 and (p-1)/128 are both prime.
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3
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21377, 44417, 140417, 151169, 151937, 155777, 436097, 539009, 569729, 570497, 608129, 658817, 704897, 830849, 865409, 965249, 1000577, 1008257, 1054337, 1130369, 1214849, 1311617, 1419137, 1429889, 1556609, 1618817, 1779329
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Prime[ Select[ Range[141120], PrimeQ[(Prime[ # ] - 1)/2^7] && PrimeQ[2^7Prime[ # ] + 1] & ]]
Select[Prime[Range[140000]], AllTrue[{128#+1, (#-1)/128}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Jan 13 2019 *)
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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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