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 A161862 #9 Mar 17 2025 18:32:57
%S A161862 1,14,104,546,2274,7994,24647,68392,173978,411332,913445,1921218,
%T A161862 3852849,7407596,13716315,24553998,42632552,71995170,118536730,
%U A161862 190677578,300220648,463423974,702322075,1046330260,1534165425,2216115226,3156684454,4437642874,6161492611,8455365296
%N A161862 Number of reduced words of length n in the Weyl group B_14.
%C A161862 Computed with MAGMA using commands similar to those used to compute A161409.
%D A161862 J. E. Humphreys, Reflection Groups and Coxeter Groups, Cambridge, 1990. See under Poincaré polynomial.
%D A161862 N. Bourbaki, Groupes et alg. de Lie, Chap. 4, 5, 6. (The group is defined in Planche II.)
%H A161862 Andrew Howroyd, <a href="/A161862/b161862.txt">Table of n, a(n) for n = 0..196</a>
%F A161862 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.
%Y A161862 Row n=14 of A128084.
%K A161862 nonn,fini,full
%O A161862 0,2
%A A161862 _John Cannon_ and _N. J. A. Sloane_, Nov 30 2009