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 A162754 #7 Mar 23 2025 16:16:27
%S A162754 1,8,56,364,2352,15120,97188,624456,4012344,25779852,165639600,
%T A162754 1064257488,6838005636,43935147144,282289509432,1813749821100,
%U A162754 11653597893168,74876006587536,481088880641124,3091063767615432
%N A162754 Number of reduced words of length n in Coxeter group on 8 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.
%C A162754 The initial terms coincide with those of A003950, although the two sequences are eventually different.
%C A162754 Computed with MAGMA using commands similar to those used to compute A154638.
%H A162754 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (6, 6, -21).
%F A162754 G.f.: (t^3 + 2*t^2 + 2*t + 1)/(21*t^3 - 6*t^2 - 6*t + 1)
%t A162754 coxG[{3,21,-6}] (* The coxG program is at A169452 *) (* _Harvey P. Dale_, Mar 23 2025 *)
%K A162754 nonn
%O A162754 0,2
%A A162754 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009