A239345 - OEIS

%I #11 Jun 06 2017 14:36:42

%S 3,33,105,129,165,201,231,351,363,393,447,543,687,861,951,1107,1149,

%T 1227,1257,1269,1293,1359,1389,1515,1557,1605,1647,1689,1761,1803,

%U 1815,1941,1977,2073,2127,2145,2163,2289,2355,2415,2445,2481,2571,2607,2619,2775,2811,2859,2973,3141,3171,3321,3327,3333,3393,3471,3501,3513

%N Numbers n such that n^8+8 is prime.

%C Note that all the numbers in this sequence are odd.

%e 3^8+8 = 6569 is prime. Thus, 3 is a member of this sequence.

%t Select[Range[1,3600,2],PrimeQ[#^8+8]&] (* _Harvey P. Dale_, Apr 20 2015 *)

%o (Python)

%o import sympy

%o from sympy import isprime

%o {print(n) for n in range(10**4) if isprime(n**8+8)}

%o (PARI) is(n)=isprime(n^8+8) \\ _Charles R Greathouse IV_, Jun 06 2017

%Y Cf. A067201, A049441.

%K easy,nonn

%O 1,1

%A _Derek Orr_, Mar 16 2014