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 A185349 #11 Oct 25 2012 11:44:09 %S A185349 1,1,2,6,22,93 %N A185349 Number of isomorphism classes of partially ordered sets of length n that occur as intervals in weak Bruhat order of some Coxeter group. %D A185349 Björner, Anders; Brenti, Francesco. Combinatorics of Coxeter groups. Graduate Texts in Mathematics, 231. Springer, New York, 2005. %H A185349 Matthew J. Samuel, <a href="http://arxiv.org/abs/1101.4655">Word posets, complexity, and Coxeter groups</a>, arXiv:1101.4655 [math.CO] %H A185349 Matthew J. Samuel, <a href="http://www.math.rutgers.edu/~msamuel/enumweak.pdf">Enumeration of small weak order intervals</a> %Y A185349 a(n) >= A000112(n). %K A185349 nonn,hard,more %O A185349 0,3 %A A185349 _Matthew J. Samuel_, Feb 15 2011