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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

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

Cf. A056899, A049423, A056905, A079138, A138362, A138375.

Sequence in context: A146714 A146397 A146405 * A158968 A072895 A097059

Adjacent sequences:  A228241 A228242 A228243 * A228245 A228246 A228247

KEYWORD

nonn,easy

AUTHOR

Michel Marcus, Aug 18 2013

STATUS

approved

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Last modified April 23 18:45 EDT 2017. Contains 285329 sequences.