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 A162919 #5 Nov 23 2016 15:35:29 %S A162919 1,50,2450,118825,5762400,279417600,13548901800,656982748800, %T A162919 31856924131200,1544734021723200,74903753688422400, %U A162919 3632063667308697600,176117828998315276800,8539908033612366028800,414097934532557674291200 %N A162919 Number of reduced words of length n in Coxeter group on 50 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I. %C A162919 The initial terms coincide with those of A170769, although the two sequences are eventually different. %C A162919 Computed with MAGMA using commands similar to those used to compute A154638. %H A162919 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (48, 48, -1176). %F A162919 G.f.: (t^3 + 2*t^2 + 2*t + 1)/(1176*t^3 - 48*t^2 - 48*t + 1) %K A162919 nonn %O A162919 0,2 %A A162919 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009