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A161469
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Primes of the form 3^k+2^k-k^3+k^2.
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1
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OFFSET
| 1,1
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COMMENTS
| The associated k are 1,3,6,17,27,36,70,102,237,377,463,576,639,683,... [R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 12 2009]
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MATHEMATICA
| lst={}; Do[If[PrimeQ[p=(3^n+2^n)-(n^3-n^2)], AppendTo[lst, p]], {n, 6!}]; lst
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PROG
| (MAGMA) [ a: n in [1..450] | IsPrime(a) where a is 3^n+2^n-n^3+n^2] [From Vincenzo Librandi, Nov 30 2010]
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CROSSREFS
| Cf. A058765, A082101, A161470.
Sequence in context: A081479 A096996 A070294 * A119531 A172996 A085832
Adjacent sequences: A161466 A161467 A161468 * A161470 A161471 A161472
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KEYWORD
| nonn
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AUTHOR
| Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 10 2009
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EXTENSIONS
| Definition simplified by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 12 2009
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