A087682 Numbers n such that n + 8 and n - 8 are both prime.

11, 15, 21, 39, 45, 51, 75, 81, 105, 159, 165, 171, 189, 219, 231, 249, 285, 339, 345, 375, 381, 441, 471, 495, 549, 555, 579, 585, 609, 639, 651, 669, 735, 765, 819, 831, 945, 975, 1005, 1041, 1095, 1101, 1179, 1209, 1221, 1299, 1311, 1431, 1479, 1491

Offset: 1

Author

Zak Seidov, Sep 27 2003

Keywords

• easy
• nonn

Links

• Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A014574, A087678-A087683, A087695-A087697, A088768.

Programs

Mathematica

f[n_]:=PrimeQ[n-8]&&PrimeQ[n+8]; lst={};Do[If[f[n],AppendTo[lst,n]],{n,7,8!,2}];lst (* Vladimir Joseph Stephan Orlovsky, Oct 09 2009 *)

Extensions

More terms from Ray Chandler, Oct 26 2003