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A154264
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Nonnegative numbers n such that 9*n^2 - 10*n + 3 is prime.
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3
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0, 1, 2, 4, 8, 14, 22, 26, 28, 34, 38, 44, 46, 50, 52, 68, 70, 82, 86, 88, 100, 112, 118, 122, 124, 140, 146, 148, 152, 158, 170, 182, 188, 190, 196, 212, 224, 232, 236, 248, 256, 278, 280, 284, 286, 290, 292, 298, 310, 314, 334, 356, 374, 376, 380, 388, 394, 400
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OFFSET
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1,3
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COMMENTS
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With the exception of the 1, all entries are == 2 (mod 6) or == 4 (mod 6), as in A047235, because otherwise 9*n^2-10*n+3 is divisible by 2 or 3. - R. J. Mathar, Jul 16 2012
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LINKS
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MATHEMATICA
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PROG
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(Magma) [n: n in [0..400] | IsPrime(9*n^2-10*n+3)]; // Vincenzo Librandi, Sep 24 2012
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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