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 A294405 #9 Feb 16 2025 08:33:51 %S A294405 0,0,0,0,0,2,3,14,19,162 %N A294405 Number of connected weakly regular graphs on n nodes. %H A294405 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a> %H A294405 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/WeaklyRegularGraph.html">Weakly Regular Graph</a> %F A294405 a(n) = A005177(n) - A088741(n). - _Andrew Howroyd_, Sep 03 2019 %Y A294405 Cf. A005177 (connected regular graphs). %Y A294405 Cf. A076434 (not-necessarily connected weakly regular graphs). %Y A294405 Cf. A088741 (connected strongly regular graphs). %K A294405 nonn,more %O A294405 1,6 %A A294405 _Eric W. Weisstein_, Oct 30 2017