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Search: id:A087678
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| A087678 |
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n +/- 9 are both prime. |
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+0
12
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| 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; listen)
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OFFSET
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1,1
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MATHEMATICA
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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]
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CROSSREFS
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Cf. A014574, A087678-A087683, A087695-A087697, A088769.
Sequence in context: A006576 A083247 A074851 this_sequence A144585 A108874 A063848
Adjacent sequences: A087675 A087676 A087677 this_sequence A087679 A087680 A087681
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KEYWORD
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easy,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Sep 27 2003
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