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 A071043 #10 Dec 28 2015 15:21:32 %S A071043 0,0,3,1,7,5,9,3,15,13,17,11,21,15,21,7,31,29,33,27,37,31,37,23,45,39, %T A071043 45,31,49,35,45,15,63,61,65,59,69,63,69,55,77,71,77,63,81,67,77,47,93, %U A071043 87,93,79,97,83,93,63,105,91,101,71,105,75,93,31,127,125,129 %N A071043 Number of 0's in n-th row of triangle in A071029. %D A071043 S. Wolfram, A New Kind of Science, Wolfram Media, 2002; Chapter 3. %H A071043 Robert Price, <a href="/A071043/b071043.txt">Table of n, a(n) for n = 0..1000</a> %H A071043 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %K A071043 nonn %O A071043 0,3 %A A071043 _Hans Havermann_, May 26 2002