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 A162186 #5 Jul 19 2015 10:21:15
%S A162186 1,46,1080,17250,210794,2101418,17796503,131648504,868101374,
%T A162186 5182032940,28344317261,143450494506,677150551521,3001361428036,
%U A162186 12561988338047,49889607533966,188796675237026,683282982630926,2372613717733406
%N A162186 Number of reduced words of length n in the Weyl group B_46.
%C A162186 Computed with MAGMA using commands similar to those used to compute A161409.
%D A162186 J. E. Humphreys, Reflection Groups and Coxeter Groups, Cambridge, 1990. See under Poincaré polynomial.
%D A162186 N. Bourbaki, Groupes et alg. de Lie, Chap. 4, 5, 6. (The group is defined in Planche II.)
%F A162186 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 A162186 nonn
%O A162186 0,2
%A A162186 _John Cannon_ and _N. J. A. Sloane_, Nov 30 2009