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 A242890 #16 Jun 23 2019 17:48:13 %S A242890 8,16,16,16,16,16,24 %N A242890 Beginning with a central 'Star' configuration of a centrally symmetric arrangement of 8 rhombi with 8-fold rotational symmetry, number of tiles that can be added to the free edges of the tiling. %H A242890 S. Weber, <a href="http://www.jcrystal.com/steffenweber/JAVA/jtiling/jtiling.html">Fourier transform on quasiperiodic point sets</a> (select '8-fold' with 'shift (n-1)/2n') %Y A242890 Cf. A242128, A242129, A242888, A242889, A242891, A242892, A242893, A242894, A242895. %K A242890 nonn,more %O A242890 1,1 %A A242890 _Felix Fröhlich_, May 25 2014