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 A162767 #5 Nov 23 2016 15:22:06 %S A162767 1,12,132,1386,14520,151800,1586970,16589100,173411700,1812724650, %T A162767 18948963000,198079233000,2070582104250,21644420407500, %U A162767 226255667302500,2365118861366250,24723302164275000,258440148554775000 %N A162767 Number of reduced words of length n in Coxeter group on 12 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I. %C A162767 The initial terms coincide with those of A003954, although the two sequences are eventually different. %C A162767 Computed with MAGMA using commands similar to those used to compute A154638. %H A162767 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (10, 10, -55). %F A162767 G.f.: (t^3 + 2*t^2 + 2*t + 1)/(55*t^3 - 10*t^2 - 10*t + 1) %K A162767 nonn %O A162767 0,2 %A A162767 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009