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A177139
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Numbers n such that (3*n-4, 3*n-2) is a twin prime pair.
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1
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3, 5, 7, 11, 15, 21, 25, 35, 37, 47, 51, 61, 65, 67, 77, 81, 91, 95, 105, 117, 141, 145, 155, 175, 191, 201, 207, 215, 221, 271, 275, 277, 287, 295, 341, 345, 351, 355, 365, 385, 411, 427, 431, 435, 441, 477, 485, 495, 497
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listen;
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text;
internal format)
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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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MATHEMATICA
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Flatten[Table[If[PrimeQ[3*n - 2] && PrimeQ[3*n - 4], n, {}], {n, 1, 500}]]
Select[Range[500], And@@PrimeQ[3#-{4, 2}]&] (* Harvey P. Dale, Jun 21 2012 *)
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CROSSREFS
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KEYWORD
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nonn,less,easy
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AUTHOR
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EXTENSIONS
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Formula added by the Assoc. Eds. of the OEIS, May 03 2010.
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STATUS
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approved
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