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A256312
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Primes of the form n^2 + n + 712329866165608771.
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1
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712329866165608783, 712329866165608813, 712329866165609323, 712329866165609371, 712329866165610103, 712329866165611741, 712329866165612077, 712329866165612677, 712329866165612803, 712329866165614933, 712329866165621653, 712329866165624023
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OFFSET
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1,1
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COMMENTS
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From Mollin's paper: "x^2 + x + A with A=712329866165608771 has the largest asymptotic density of primes for any polynomial of this type to date" (1997).
Is it still so?
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LINKS
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MATHEMATICA
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Select[Table[n^2 + n + 712329866165608771, {n, 1, 200}], PrimeQ]
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PROG
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(Magma) [a: n in [1..200] | IsPrime(a) where a is n^2 + n + 712329866165608771];
(PARI) for(n=1, 100, if(isprime(k=n^2+n+712329866165608771), print1(k, ", "))) \\ Derek Orr, Apr 05 2015
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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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STATUS
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approved
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