A120228 Numbers k such that 8+k and 8*k+1 are prime.
5, 9, 11, 29, 35, 39, 51, 65, 71, 75, 95, 101, 119, 129, 131, 141, 149, 165, 185, 215, 219, 225, 249, 261, 269, 285, 299, 305, 309, 329, 339, 341, 371, 375, 381, 401, 431, 441, 449, 459, 471, 479, 491, 555, 591, 599, 611, 635, 639, 651, 711, 725, 731, 735, 761
Offset: 1
Keywords
Links
- Harvey P. Dale, Table of n, a(n) for n = 1..1000
Programs
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Mathematica
Select[Range[800],AllTrue[{8+#,8#+1},PrimeQ]&] (* Harvey P. Dale, May 28 2016 *)