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Search: id:A162295
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| A162295 |
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Primes of the form k^3-k^2-k-1. |
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+0
2
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| 43, 173, 439, 1571, 3823, 10141, 21139, 38113, 83203, 122449, 154493, 172423, 191689, 433123, 468389, 673639, 1318789, 1392271, 1628989, 2388013, 2608889, 3771923, 4225121, 4546573, 4713239, 4883929, 6609139, 6822709, 7959799
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n)=k^3-k^2-k-1 where k=A162294(n).
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EXAMPLE
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a(1)=4^3-4^2-4-1=43. a(2)=6^3-6^2-6-1=173.
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MATHEMATICA
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lst={}; Do[p=n^3-n^2-n-1; If[PrimeQ[p], AppendTo[lst, p]], {n, 2, 6!}]; lst
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CROSSREFS
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Cf. A087908, A162291, A111501, A162293, A162294
Sequence in context: A083357 A158604 A057816 this_sequence A158628 A123597 A138631
Adjacent sequences: A162292 A162293 A162294 this_sequence A162296 A162297 A162298
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 30 2009
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EXTENSIONS
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Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 02 2009
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