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 A242891 #16 Jun 23 2019 17:49:05 %S A242891 8,8,8,16,24,24,40,32,48,48,40 %N A242891 Beginning with a centrally symmetric 'Sun' configuration of 8 rhombi with rotational symmetry, number of tiles that can be added to the free edges of the tiling. %H A242891 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 1/n') %Y A242891 Cf. A242128, A242129, A242888, A242889, A242890, A242892, A242893, A242894, A242895. %K A242891 nonn,more %O A242891 1,1 %A A242891 _Felix Fröhlich_, May 25 2014