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 A294437 #25 Nov 23 2024 19:37:17 %S A294437 0,2,8,20,40,30,27 %N A294437 Erroneous version of A007290. %C A294437 Included in accordance with OEIS policy of including erroneous but published sequences to serve as pointers to the correct versions. %C A294437 Original name: Number of conjugacy classes of primitive words of length 3 over an alphabet of size n. %H A294437 Dominique Perrin and Christophe Reutenauer, <a href="https://arxiv.org/abs/1609.05438">Hall sets, Lazard sets and comma-free codes</a>, arXiv preprint arXiv:1609.05438 [math.CO] (2016). %H A294437 Dominique Perrin and Christophe Reutenauer, <a href="https://doi.org/10.1016/j.disc.2017.08.034">Hall sets, Lazard sets and comma-free codes</a>, Discrete Math., 341 (2018), 232-243. %H A294437 Dominique Perrin and Christophe Reutenauer, <a href="/A294438/a294438.jpg">Hall sets, Lazard sets and comma-free codes</a>, Discrete Math., 341 (2018), 232-243. [Annotated scanned copy of page 236 only.] %K A294437 dead %O A294437 1,2