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 A229730 #16 May 26 2023 05:54:33 %S A229730 0,0,2,2,8,14,54,128,466 %N A229730 Number of separable permutations with the maximum number of occurrences of the 1-box pattern on separable permutations. %C A229730 See Kitaev-Remmel for precise definition. %H A229730 S. Kitaev and J. Remmel, <a href="http://arxiv.org/abs/1305.6970">The 1-box pattern on pattern avoiding permutations</a>, arXiv preprint arXiv:1305.6970 [math.CO], 2013. %Y A229730 Cf. A229729, A363181. %K A229730 nonn,more %O A229730 0,3 %A A229730 _N. J. A. Sloane_, Oct 01 2013