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 A376989 #5 Oct 13 2024 12:16:02 %S A376989 0,0,0,0,0,0,1,2,1,2,4,9,8,13,19,42,37,65,78,181,152,298 %N A376989 Number of polycubes of size n and symmetry class EFF. %C A376989 See link "Counting free polycubes" for explanation of notation. %H A376989 John Mason, <a href="/A038119/a038119_1.pdf">Counting free polycubes</a> %Y A376989 Cf. A000162, A038119. %K A376989 nonn,more %O A376989 1,8 %A A376989 _John Mason_, Oct 13 2024