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 A319114 #7 Feb 16 2025 08:33:56 %S A319114 0,0,0,0,1,14,222,5365 %N A319114 Number of simple toroidal graphs on n nodes. %C A319114 a(n) <= A145269(n). %C A319114 a(n) = A145269(n) for n < 8. %C A319114 a(8) = A145269(8) - 15 since there are 15 double-toroidal graphs on 8 nodes (all of which are connected). %H A319114 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SimpleGraph.html">Simple Graph</a> %H A319114 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ToroidalGraph.html">Toroidal Graph</a> %Y A319114 Cf. A145269 (number of nonplanar simple graphs). %K A319114 nonn,more %O A319114 1,6 %A A319114 _Eric W. Weisstein_, Sep 10 2018