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 A253103 #7 Mar 17 2015 20:33:06 %S A253103 1,27,125,1331,9261,79507,614125,5000211,39651821,318611987, %T A253103 2543302125,20368783891,162860787181,1303244200467,10424521926125, %U A253103 83401901988371,667192309327341,5337630100412947,42700674299078125,341606860407429651,2732849019196024301,21862815609813457427 %N A253103 A001045(n)^3. %H A253103 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 A253103 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 A253103 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %Y A253103 Cf. A001045, A253102. %K A253103 nonn %O A253103 2,2 %A A253103 _N. J. A. Sloane_, Feb 20 2015