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A228244
Primes of the form n^2+17.
4
17, 53, 593, 3617, 4373, 6101, 8117, 11681, 20753, 26261, 30293, 34613, 54773, 63521, 86453, 90017, 101141, 108917, 112913, 116981, 138401, 156833, 176417, 191861, 207953, 213461, 219041, 248021, 278801, 352853, 404513, 419921, 427733, 451601
OFFSET
1,1
LINKS
EXAMPLE
17 = 0^2+17 is prime.
53 = 6^2+17 is prime.
MATHEMATICA
Select[Table[n^2 + 17, {n, 0, 900}], PrimeQ] (* Bruno Berselli, Aug 18 2013 *)
PROG
(PARI) isp(n) = isprime(n) && issquare(n-17);
(Magma) [m: n in [0..900] | IsPrime(m) where m is n^2+17]; // Bruno Berselli, Aug 18 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Michel Marcus, Aug 18 2013
STATUS
approved