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 A161393 #8 Jul 28 2017 13:26:51 %S A161393 1,2,7,32,175,1081 %N A161393 Dimension sequence of the alternative operad in characteristic 3. %H A161393 A. Dzhumadil'daev and P. Zusmanovich, <a href="https://arxiv.org/abs/0906.1272">The alternative operad is not Koszul</a>, arXiv:0906.1272 [math.RA], 2009-2013. %Y A161393 Cf. A161391, A161392. %K A161393 nonn,more %O A161393 1,2 %A A161393 _Pasha Zusmanovich_, Jun 09 2009