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 A051107 #2 May 16 2003 03:00:00 %S A051107 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70, %T A051107 80,90,100,1000,1000000,1000000000,1000000000000,1000000000000000000, %U A051107 1000000000000000000000000 %N A051107 Numbers described with a single word in British English. %e A051107 "Nineteen" is one word, while "twenty-one" is not. %K A051107 nonn,word %O A051107 0,3 %A A051107 Robert Lozyniak (11(AT)onna.com)