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 A290512 #9 Feb 16 2025 08:33:49 %S A290512 2,3,11,77,3239,4483013 %N A290512 Number of irredundant sets in the n-hypercube graph. %H A290512 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HypercubeGraph.html">Hypercube Graph</a> %H A290512 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a> %Y A290512 Cf. A284704, A290406, A291062. %K A290512 nonn,more %O A290512 0,1 %A A290512 _Eric W. Weisstein_, Aug 04 2017 %E A290512 a(5) from _Andrew Howroyd_, Aug 19 2017