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 A002933 M4123 N1711 #17 Nov 27 2010 14:00:43 %S A002933 1,6,18,54,162,474,1398,4074,11898,34554,100302,290334,839466 %N A002933 Erroneous version of A174313. %D A002933 M. E. Fisher and B. J. Hiley, Configuration and free energy of a polymer molecule with solvent interaction, J. Chem. Phys., 34 (1961), 1253-1267. %K A002933 dead %O A002933 0,2