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 A079746 #5 Dec 11 2013 07:09:02 %S A079746 1,8,48,288,1728,10128,57780,305483,1239266,1879631,237320,778,21 %N A079746 Number of positions that are exactly n moves from the starting position in the Halpern-Meier Pyramid puzzle. %C A079746 This is the number of positions that can be reached in n moves from the start, but which cannot be reached in fewer than n moves. %C A079746 A puzzle in the Rubik cube family. The total number of distinct positions is 3732480 %H A079746 Jaap Scherphuis, <a href="http://www.jaapsch.net/puzzles/">Puzzle Pages</a> %K A079746 nonn,fini,full %O A079746 0,2 %A A079746 _N. J. A. Sloane_, Feb 20 2003