OFFSET
1,1
COMMENTS
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?
LINKS
R. A. Mollin, Prime-producing quadratics, Amer. Math. Monthly 104 (1997), page 542.
Wikipedia, Hardy and Littlewood's Conjecture F
MATHEMATICA
Select[Table[n^2 + n + 712329866165608771, {n, 1, 200}], PrimeQ]
PROG
(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
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Apr 05 2015
STATUS
approved