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 A161987 #5 Jul 19 2015 10:23:51
%S A161987 1,32,527,5952,51831,370976,2271896,12237280,59146604,260441632,
%T A161987 1057250877,3994502272,14156055636,47361532160,150411609649,
%U A161987 455543049760,1321024921186,3680779823776,9884216117666,25650056954016
%N A161987 Number of reduced words of length n in the Weyl group B_32.
%C A161987 Computed with MAGMA using commands similar to those used to compute A161409.
%D A161987 J. E. Humphreys, Reflection Groups and Coxeter Groups, Cambridge, 1990. See under Poincaré polynomial.
%D A161987 N. Bourbaki, Groupes et alg. de Lie, Chap. 4, 5, 6. (The group is defined in Planche II.)
%F A161987 G.f. for B_m is the polynomial Prod_{k=1..m}(1-x^(2k))/(1-x). Only finitely many terms are nonzero. This is a row of the triangle in A128084.
%K A161987 nonn
%O A161987 0,2
%A A161987 _John Cannon_ and _N. J. A. Sloane_, Nov 30 2009