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 A202703 #10 Oct 20 2014 17:15:13 %S A202703 1,0,1,1,1,0,6,7,8,8,29,23,16,8,0 %N A202703 The third of a set of three triangles constructed by the same rule as A202692-A202694, but where the top entries in the three triangles are 0,0,1 respectively. %H A202703 M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, <a href="http://arxiv.org/abs/1110.5272">The algebraic combinatorics of snakes</a>, arXiv preprint arXiv:1110.5272, 2011 %e A202703 Triangle begins: %e A202703 1 %e A202703 0 1 %e A202703 1 1 0 %e A202703 6 7 8 8 %e A202703 29 23 16 8 0 %e A202703 ... %Y A202703 See A202701 for further information. %K A202703 nonn,tabl,more %O A202703 1,7 %A A202703 _N. J. A. Sloane_, Dec 23 2011