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Search: id:A087683
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| A087683 |
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n +/- 10 are both prime. |
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+0
12
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| 13, 21, 27, 33, 51, 57, 63, 69, 93, 99, 117, 141, 147, 183, 189, 201, 261, 267, 273, 303, 321, 327, 357, 363, 369, 399, 411, 429, 453, 477, 489, 513, 531, 567, 597, 603, 609, 651, 663, 729, 819, 849, 867, 873, 897, 957, 981, 987
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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3 divides every term except the first. - T. D. Noe, May 14 2008
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
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MATHEMATICA
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f[n_]:=PrimeQ[n-10]&&PrimeQ[n+10]; lst={}; Do[If[f[n], AppendTo[lst, n]], {n, 9, 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, A088770.
Sequence in context: A032693 A034294 A049745 this_sequence A128819 A165955 A050711
Adjacent sequences: A087680 A087681 A087682 this_sequence A087684 A087685 A087686
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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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