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Search: id:A046120
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| A046120 |
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Largest member of a sexy prime triple; value of p+12 where (p,p+6,p+12) are all prime but p+18 is not |
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+0
4
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| 19, 29, 43, 59, 79, 109, 113, 163, 179, 239, 269, 283, 359, 379, 569, 599, 619, 659, 739, 953, 983, 1109, 1129, 1193, 1229, 1289, 1303, 1373, 1439, 1459, 1499, 1619, 1669, 1759, 1789, 1879, 1913, 1999, 2143, 2293, 2389, 2423, 2689, 2699, 2719
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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If a sexy prime triple happens to include the last 3 members of a sexy prime quadruple this sequence will contain the sexy prime triple's largest member, e.g. a(4)=59 is the largest member of the sexy prime triple (47, 53, 59), but is the fourth member of the sexy prime quadruple (41, 47, 53, 59). [From Daniel Forgues (squid(AT)zensearch.com), Aug 05 2009]
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[p+6]&&PrimeQ[p+12]&&!PrimeQ[p+18], AppendTo[lst, p+12]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 29 2008]
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CROSSREFS
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Cf. A023201, A046117.
Cf. A046118, A046119.
Sequence in context: A157483 A096218 A100590 this_sequence A063644 A156782 A092600
Adjacent sequences: A046117 A046118 A046119 this_sequence A046121 A046122 A046123
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KEYWORD
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nonn
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com)
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