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 A342057 #6 Mar 27 2021 23:37:28 %S A342057 1,1,3,11,69,541,5096,50586,534292,5865150,66582243,776705379, %T A342057 9274453627,112984297173 %N A342057 Number of polyhedra with n faces and n vertices up to orientation preserving isomorphisms. %Y A342057 Main diagonal of A239893. %Y A342057 Cf. A002856. %K A342057 nonn,more %O A342057 4,3 %A A342057 _Andrew Howroyd_, Mar 27 2021