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 A058216 #11 Apr 17 2020 07:50:25 %S A058216 2,10,13,16,32,37,97,155,160,176,193,224,253,256,275,592,800,1280 %N A058216 Numbers n such that x^n + x^12 + 2 is irreducible over GF(3). %o A058216 (PARI) is(k) = polisirreducible(Mod(1, 3)*(x^k + x^12 + 2)); \\ _Jinyuan Wang_, Apr 15 2020 %Y A058216 Cf. A057482. %K A058216 nonn,more %O A058216 1,1 %A A058216 _Robert G. Wilson v_, Nov 30 2000 %E A058216 a(17)-a(18) from _Jinyuan Wang_, Apr 15 2020