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 A216980 #12 Mar 29 2016 11:50:26 %S A216980 0,1,9,21,53,63,99,123,141,155,185,213,315,363,375,449,513,521,543, %T A216980 555,653,669,699,731,735,759,801,843,881,975,983,995,1031,1095,1115, %U A216980 1131,1149,1161,1221,1253,1395,1413,1451,1473,1491,1571,1599,1625,1659,1733 %N A216980 Numbers n such that n^7+2 is prime. %H A216980 Charles R Greathouse IV, <a href="/A216980/b216980.txt">Table of n, a(n) for n = 1..10000</a> %t A216980 lst={}; Do[If[PrimeQ[n^7+2], AppendTo[lst, n]], {n, 0, 10^3}]; lst %t A216980 Select[Range[0,2000],PrimeQ[#^7+2]&] (* _Harvey P. Dale_, Mar 29 2016 *) %o A216980 (PARI) select(n->isprime(n^7+2),vector(2000,n,n-1)) /* _Joerg Arndt_, Sep 21 2012 */ %Y A216980 Cf. A067200, A067201, A216974, A216976, A216978. %K A216980 nonn %O A216980 1,3 %A A216980 _Michel Lagneau_, Sep 21 2012