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 A247569 #7 Sep 20 2014 14:12:34 %S A247569 3,6,5,20,13,7,9,18,41,110,25,52,15,60,25,136,37,114,81 %N A247569 Base-8 state complexity of partitioned deterministic finite automaton (PDFA) for the periodic sequence (123...n)*. %H A247569 Klaus Sutner and Sam Tetruashvili, <a href="http://www.cs.cmu.edu/~sutner/papers/auto-seq.pdf">Inferring automatic sequences</a> (see table on the p. 5). %Y A247569 Cf. similar sequences listed in A247566. %K A247569 nonn,more %O A247569 2,1 %A A247569 _Vincenzo Librandi_, Sep 20 2014