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 A097390 #3 Mar 30 2012 17:27:19 %S A097390 20,8,9,19,19,5,14,20,5,14,3,5,3,15,14,20,1,9,14,19,20,8,5,20,23,5,14, %T A097390 20,9,5,20,8,5,9,7,8,20,8,14,9,14,20,8,14,9,14,5,20,5,5,14,20,8,14,9, %U A097390 14,5,20,5,5,14,20,8,6,9,6,20,8,6,15,21,18,20,5,5,14,20,8,20,23,5,14,20,9 %N A097390 Values of ordinal numbers in the following true sentence: "This sentence contains the twentieth, eighth, ninth, nineteenth ... letters of the English alphabet, in order.". %Y A097390 Cf. A005224, A096828, A097389, A096829, A097395. %Y A097390 See A097395 for a more basic version of this sequence. %K A097390 easy,nonn,word %O A097390 1,1 %A A097390 _Matthew Vandermast_, Aug 13 2004