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 A255464 #7 Mar 17 2015 15:55:17 %S A255464 1,6,6,22,6,36,22,90,6,36,36,132,22,132,90,358,6,36,36,132,36,216,132, %T A255464 540,22,132,132,484,90,540,358,1434,6,36,36,132,36,216,132,540,36,216, %U A255464 216,792,132,792,540,2148,22,132,132,484,132,792,484,1980,90,540,540,1980 %N A255464 Number of ON cells after n generations of the odd-rule cellular automaton defined by OddRule 137 when started with a single ON cell. %H A255464 Shalosh B. Ekhad, N. J. A. Sloane, and Doron Zeilberger, <a href="http://arxiv.org/abs/1503.01796">A Meta-Algorithm for Creating Fast Algorithms for Counting ON Cells in Odd-Rule Cellular Automata</a>, arXiv:1503.01796, 2015; see also the <a href="http://www.math.rutgers.edu/~zeilberg/mamarim/mamarimhtml/CAcount.html">Accompanying Maple Package</a>. %H A255464 Shalosh B. Ekhad, N. J. A. Sloane, and Doron Zeilberger, <a href="http://arxiv.org/abs/1503.04249">Odd-Rule Cellular Automata on the Square Grid</a>, arXiv:1503.04249, 2015. %H A255464 N. J. A. Sloane, On the No. of ON Cells in Cellular Automata, Video of talk in Doron Zeilberger's Experimental Math Seminar at Rutgers University, Feb. 05 2015: <a href="https://vimeo.com/119073818">Part 1</a>, <a href="https://vimeo.com/119073819">Part 2</a> %H A255464 N. J. A. Sloane, <a href="http://arxiv.org/abs/1503.01168">On the Number of ON Cells in Cellular Automata</a>, arXiv:1503.01168, 2015 %H A255464 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %Y A255464 Run length transform of A255465. %K A255464 nonn %O A255464 0,2 %A A255464 _N. J. A. Sloane_ and _Doron Zeilberger_, Feb 23 2015