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 A050911 #12 Feb 10 2020 02:28:13 %S A050911 1,1,4,11,40,122,410,1270,3888,11230,31169,82234,208068,504148, %T A050911 1175882,2643952,5751108,12125574,24845786,49567350,96475743, %U A050911 183489050,341565932,623152106,1115673576,1962423333,3394902381,5781655379 %N A050911 Number of pure 2-complexes on 6 unlabeled nodes with n multiple 2-simplexes. %H A050911 Andrew Howroyd, <a href="/A050911/b050911.txt">Table of n, a(n) for n = 0..500</a> %Y A050911 Column m=6 of A305027. %Y A050911 Cf. A001400, A014395. %K A050911 nonn %O A050911 0,3 %A A050911 _Vladeta Jovovic_, Dec 29 1999