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A087678 n +/- 9 are both prime. 12
14, 20, 22, 28, 32, 38, 50, 52, 62, 70, 80, 88, 92, 98, 118, 122, 140, 148, 158, 172, 182, 188, 190, 202, 220, 232, 242, 248, 260, 272, 302, 322, 340, 358, 388, 392, 410, 430, 440, 448, 452, 458, 470, 500, 512, 532, 578, 608, 610, 622, 650, 652, 668, 682, 692 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

f[n_]:=PrimeQ[n-9]&&PrimeQ[n+9]; lst={}; Do[If[f[n], AppendTo[lst, n]], {n, 6, 8!, 2}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Oct 09 2009]

CROSSREFS

Cf. A014574, A087678-A087683, A087695-A087697, A088769.

Sequence in context: A083247 A074851 A193672 * A144585 A186193 A108874

Adjacent sequences:  A087675 A087676 A087677 * A087679 A087680 A087681

KEYWORD

easy,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Sep 27 2003

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Last modified February 15 13:19 EST 2012. Contains 205797 sequences.