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A267069
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Nonnegative numbers n such that abs(103*n^2 - 4707*n + 50383) is prime.
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2
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 47, 49, 50, 51, 52, 53, 54, 57, 59, 60, 61, 63, 64, 65, 66, 67, 69, 73, 74, 76, 77, 80
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OFFSET
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1,3
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COMMENTS
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43 is the smallest number not in this sequence.
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LINKS
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EXAMPLE
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4 is in this sequence since 103*4^2 - 4707*4 + 50383 = 1648-18828+50383 = 33203 is prime.
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MATHEMATICA
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Select[Range[0, 100], PrimeQ[103#^2 - 4707# + 50383 ] &]
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PROG
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(PARI) lista(nn) = for(n=0, nn, if(isprime(abs(103*n^2-4707*n+50383)), print1(n, ", "))); \\ Altug Alkan, Apr 28 2016, corrected by Hugo Pfoertner, Dec 13 2019
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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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