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 A167099 #12 Jul 27 2021 16:52:32
%S A167099 1,46,2070,93150,4191750,188628750,8488293750,381973218750,
%T A167099 17188794843750,773495767968750,34807309558593750,1566328930136718750,
%U A167099 70484801856152343750,3171816083526855467715,142731723758708496000600
%N A167099 Number of reduced words of length n in Coxeter group on 46 generators S_i with relations (S_i)^2 = (S_i S_j)^13 = I.
%C A167099 The initial terms coincide with those of A170765, although the two sequences are eventually different.
%C A167099 Computed with MAGMA using commands similar to those used to compute A154638.
%H A167099 G. C. Greubel, <a href="/A167099/b167099.txt">Table of n, a(n) for n = 0..500</a>
%H A167099 <a href="/index/Rec#order_13">Index entries for linear recurrences with constant coefficients</a>, signature (44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, -990).
%F A167099 G.f.: (t^13 + 2*t^12 + 2*t^11 + 2*t^10 + 2*t^9 + 2*t^8 + 2*t^7 + 2*t^6 + 2*t^5 + 2*t^4 + 2*t^3 + 2*t^2 + 2*t + 1)/(990*t^13 - 44*t^12 - 44*t^11 - 44*t^10 - 44*t^9 - 44*t^8 - 44*t^7 - 44*t^6 - 44*t^5 - 44*t^4 - 44*t^3 - 44*t^2 - 44*t + 1).
%t A167099 CoefficientList[Series[(t^13 + 2*t^12 + 2*t^11 + 2*t^10 + 2*t^9 + 2*t^8 + 2*t^7 + 2*t^6 + 2*t^5 + 2*t^4 + 2*t^3 + 2*t^2 + 2*t + 1)/(990*t^13 - 44*t^12 - 44*t^11 - 44*t^10 - 44*t^9 - 44*t^8 - 44*t^7 - 44*t^6 - 44*t^5 - 44*t^4 - 44*t^3 - 44*t^2 - 44*t + 1), {t, 0, 50}], t] (* _G. C. Greubel_, Jun 02 2016 *)
%t A167099 coxG[{13,990,-44}] (* The coxG program is at A169452 *) (* _Harvey P. Dale_, Jul 27 2021 *)
%K A167099 nonn
%O A167099 0,2
%A A167099 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009