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A059425
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Primes of form n^2 + 19n + 17.
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2
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17, 37, 59, 83, 109, 137, 167, 199, 233, 269, 307, 347, 389, 433, 479, 577, 683, 739, 797, 857, 919, 983, 1049, 1117, 1187, 1259, 1409, 1487, 1567, 1733, 1907, 1997, 2089, 2377, 2477, 2579, 2683, 2789, 2897, 3119, 3467, 3709, 3833, 4217, 4349, 4483
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OFFSET
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1,1
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COMMENTS
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0<=n<=14 gives primes.
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LINKS
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EXAMPLE
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a(3) = 83 = 3^2 + 19*3 + 17 is in the sequence because it is prime. a(15)=527 is not because 527 = 17*31.
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MAPLE
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with(numtheory): for n from 0 to 300 do if isprime(n^2 + 19*n + 17) then printf(`%d, `, n^2 + 19*n + 17) fi; od:
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MATHEMATICA
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Select[Table[n^2+19n+17, {n, 0, 60}], PrimeQ] (* Harvey P. Dale, Jun 21 2011 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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