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 A161223 #5 Oct 15 2012 23:04:04 %S A161223 1,1,2,1,2,1,1,1,3,1,1,1,2,1,2,1,1,1,3,1,3,1,2,1,3,1,3,1,1,1,3,1,3,1, %T A161223 2,1,3,1,3,1,1,1,3,1,3,1,2,1,3,1,1,1,3,1,3,1,2,1,3,1,3,1,1,1,3,1,3,1, %U A161223 2,1,3,1,3,1,1,1,3,1,3,1,2,1,1,1,3,1,2,1,2,3,1,2,1,2,3,1,1,2,1,2,3,1,2,1,2 %N A161223 Lengths of successive runs in A116909. %C A161223 A116909 is a mystery. I was hoping this would shed some light on it. %H A161223 N. J. A. Sloane, <a href="/A161223/b161223.txt">Table of n, a(n) for n = 1..280</a> %H A161223 <a href="/index/Cu#curling_numbers">Index entries for sequences related to curling numbers</a> %K A161223 nonn %O A161223 1,3 %A A161223 _N. J. A. Sloane_, Nov 29 2009