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A108108
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Numbers k such that both 137*k + 139 and 139*k + 137 are primes.
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1
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0, 20, 54, 66, 104, 140, 194, 204, 210, 260, 264, 276, 360, 390, 546, 570, 600, 794, 836, 846, 860, 986, 1086, 1140, 1146, 1160, 1254, 1260, 1284, 1296, 1350, 1436, 1440, 1454, 1506, 1650, 1706, 1736, 1770, 1814, 1826, 1860, 1904, 1970
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OFFSET
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1,2
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COMMENTS
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LINKS
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MATHEMATICA
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s={}; Do[If[PrimeQ[137*n+139]&&PrimeQ[139*n+137], s=Append[s, n]], {n, 2000}]; s
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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