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 A050912 #11 Feb 10 2020 02:28:23 %S A050912 1,1,4,14,62,272,1307,6178,28687,127074,534414,2125086,8003063, %T A050912 28603253,97334199,316359888,985253099,2948785272,8504664978, %U A050912 23695762074,63924853698,167320196102,425715789486,1054686008982 %N A050912 Number of pure 2-complexes on 7 unlabeled nodes with n multiple 2-simplexes. %H A050912 Andrew Howroyd, <a href="/A050912/b050912.txt">Table of n, a(n) for n = 0..500</a> %Y A050912 Column m=7 of A305027. %Y A050912 Cf. A001400, A014395. %K A050912 nonn %O A050912 0,3 %A A050912 _Vladeta Jovovic_, Dec 29 1999