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 A309190 #4 Jul 16 2019 02:51:12 %S A309190 195843,196168,233864 %N A309190 Numbers k for which rank of the elliptic curve y^2 = x^3 + k*x is 5. %Y A309190 Cf. A309028, A309100. %Y A309190 Cf. A002158, A002159, A076329, A309030, A309031. %K A309190 nonn,bref,hard,more %O A309190 1,1 %A A309190 _Vaclav Kotesovec_, Jul 16 2019