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 A140441 #2 Jan 09 2009 03:00:00 %S A140441 1,1,1,1,3,221 %N A140441 Erroneous version of A071881. %D A140441 S. S. Ryshkov and E. P. Baranovskii, "C-types of n-dimensional lattices and 5-dimensional primitive parellohedra (with an application to the theory of coverings)" Proc. Steklov Inst. Math., 137 (1975) Trudy Mat. Inst. Steklov., 137 (1975) %K A140441 dead %O A140441 0,5