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A121982
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Numbers n such that n^2 + 15 is prime.
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8
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2, 4, 8, 14, 16, 22, 26, 32, 34, 38, 44, 46, 52, 64, 68, 76, 86, 88, 98, 104, 106, 124, 134, 158, 172, 178, 184, 196, 202, 206, 212, 236, 238, 242, 248, 256, 262, 272, 284, 296, 298, 304, 316, 322, 326, 328, 338, 356, 362, 364, 374, 386, 388, 394, 398, 452, 472
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OFFSET
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1,1
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LINKS
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EXAMPLE
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If n=104 then n^2 + 15 = 10831 (prime).
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MATHEMATICA
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Select[Range[200], PrimeQ[#1^2 + 15] &] (* G. C. Greubel, Sep 13 2017 *)
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PROG
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CROSSREFS
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Cf. A005574, A067201, A049422, A007591, A078402, A114269, A114271, A114272, A114273, A114274, A114275, A113536, A121250.
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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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