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A096689
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Numbers n such that 2n^2 + 3n + 3 is prime.
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3
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0, 2, 4, 10, 16, 20, 26, 34, 40, 44, 46, 50, 62, 64, 74, 76, 80, 82, 86, 92, 94, 110, 122, 140, 160, 164, 170, 176, 182, 200, 202, 212, 214, 220, 224, 232, 236, 250, 262, 296, 302, 304, 310, 320, 322, 326, 332, 344, 346, 352, 392, 400, 404, 422, 424, 446, 452
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(n) = A096691(1)*2.
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MATHEMATICA
| f[n_]:=n^2+(n+1)^2+(n+2); lst={}; Do[p=f[n]; If[PrimeQ[p], AppendTo[lst, n]], {n, 0, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 04 2009]
Select[Range[0, 500], PrimeQ[2#^2+3#+3]&] (* From Harvey P. Dale, Jul 19 2011 *)
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CROSSREFS
| Cf. A095697, A096690, A096691.
Sequence in context: A058201 A000947 A125245 * A039682 A189558 A111149
Adjacent sequences: A096686 A096687 A096688 * A096690 A096691 A096692
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KEYWORD
| nonn
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AUTHOR
| Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 12 2004
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