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 A162165 #5 Jul 19 2015 10:22:48
%S A162165 1,37,702,9102,90686,740222,5153693,31465577,171895451,853189623,
%T A162165 3893872009,16498746405,65414952123,244293496151,864100862802,
%U A162165 2908662063474,9355685557836,28857543077604,85625485744207
%N A162165 Number of reduced words of length n in the Weyl group B_37.
%C A162165 Computed with MAGMA using commands similar to those used to compute A161409.
%D A162165 J. E. Humphreys, Reflection Groups and Coxeter Groups, Cambridge, 1990. See under Poincaré polynomial.
%D A162165 N. Bourbaki, Groupes et alg. de Lie, Chap. 4, 5, 6. (The group is defined in Planche II.)
%F A162165 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 A162165 nonn
%O A162165 0,2
%A A162165 _John Cannon_ and _N. J. A. Sloane_, Nov 30 2009