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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
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OFFSET
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1,2
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COMMENTS
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All n are {2,4} (mod 6), as in A047235, because otherwise 2*n^2 + 3*n + 3 is a multiple of 2 or 3. - R. J. Mathar, Jul 17 2012
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LINKS
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FORMULA
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MATHEMATICA
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Select[Range[0, 500], PrimeQ[2#^2+3#+3]&] (* Harvey P. Dale, Jul 19 2011 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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