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 A128183 #2 Mar 30 2012 17:25:19 %S A128183 1,2,7,20,54,140,352,864,2080,4928 %N A128183 Row sums of A128182. %F A128183 Row sums of triangle A128182 %e A128183 a(4) = 20 = sum of row 4 terms of A128182: (2 + 6 + 8 + 4). %Y A128183 Cf. A128182. %K A128183 nonn %O A128183 1,2 %A A128183 _Gary W. Adamson_, Feb 17 2007