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 A247575 #7 Sep 20 2014 14:11:45 %S A247575 3,6,9,10,13,8,25,54,21,55,37,13,15,30,63,272,109,342,55 %N A247575 Base-14 state complexity of partitioned deterministic finite automaton (PDFA) for the periodic sequence (123...n)*. %H A247575 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 A247575 Cf. similar sequences listed in A247566. %K A247575 nonn,more %O A247575 2,1 %A A247575 _Vincenzo Librandi_, Sep 20 2014