This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A175205 #13 Sep 08 2022 08:45:51 %S A175205 7,73,271,367,379,397,739,823,859,1291,1297,1627,1747,2083,2203,2221, %T A175205 2269,2311,3067,3079,3109,3163,3463,3607,3733,3907,4093,4339,4603, %U A175205 4933,5077,5431,5527,5821,5869,6091,6301,6373,6421,6529,6883,7927,7951,8011,8467,8689,8737 %N A175205 Primes p such that p^6-p^3+1 is also prime. %H A175205 Vincenzo Librandi, <a href="/A175205/b175205.txt">Table of n, a(n) for n = 1..1000</a> %F A175205 A000040 INTERSECT A164989. %t A175205 Select[Prime[Range[2000]], PrimeQ[#^6 - #^3 + 1]&] (* _Vincenzo Librandi_, Apr 16 2013 *) %o A175205 (PARI) forprime(p=2,10000,if(isprime(p^6-p^3+1),print1(p,", "))) %o A175205 (Magma) [p: p in PrimesUpTo(9000) | IsPrime(p^6-p^3+1)]; // _Vincenzo Librandi_, Apr 16 2013 %Y A175205 Cf. A060891, A175170, A000040, A164989. %Y A175205 Subsequence of A002476. %K A175205 nonn,easy %O A175205 1,1 %A A175205 _Vincenzo Librandi_, Dec 03 2010