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 A167512 #4 Jan 23 2013 05:18:59 %S A167512 0,0,0,0,1,2,6,10,22,34,67,100,188 %N A167512 Number of Simple Alternating Transit (SAT) mazes with exactly two extreme values. %C A167512 K(N) incorporates Fibonacci numbers to find the solution. %H A167512 Tony Phillips, <a href="http://www.math.sunysb.edu/~tony/mazes/index.html">Phillips Mazes</a> %Y A167512 Cf. A000045, A005316 %K A167512 nonn,uned %O A167512 0,6 %A A167512 Kristen M. Hendershot (KHendershot(AT)westliberty.edu), Nov 05 2009