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 A182731 #6 Mar 11 2014 01:34:18 %S A182731 1,3,3,5,3,5,4,7,3,5,4,7,3,6,5,9,3,5,4,7,3,6,5,9,5,4,8,7,6,11 %N A182731 Odd-indexed rows of triangle A141285. %H A182731 Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/polpa3dt.jpg">Illustration of the shell model of partitions (3D view)</a> %e A182731 Triangle begins: %e A182731 1, %e A182731 3, %e A182731 3, 5, %e A182731 3, 5, 4, 7, %e A182731 3, 5, 4, 7, 3, 6, 5, 9, %e A182731 3, 5, 4, 7, 3, 6, 5, 9, 5, 4, 8, 7, 6, 11, %Y A182731 Cf. A135010, A138121, A141285, A182730, A182732. %Y A182731 Rows converge to A182733. %K A182731 nonn,tabf,more %O A182731 1,2 %A A182731 _Omar E. Pol_, Nov 28 2010