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 A361149 #20 Feb 16 2025 08:34:04 %S A361149 0,0,1,10,224,22176,149137552 %N A361149 Number of chordless cycles in the n-hypercube graph Q_n. %H A361149 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ChordlessCycle.html">Chordless Cycle</a> %H A361149 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HypercubeGraph.html">Hypercube Graph</a> %Y A361149 Cf. A000937. %K A361149 nonn,more %O A361149 0,4 %A A361149 _Eric W. Weisstein_, Mar 03 2023 %E A361149 a(6) from _Pontus von Brömssen_, Apr 17 2023