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 A165694 #6 Nov 23 2016 22:17:40 %S A165694 1,43,1806,75852,3185784,133802928,5619722976,236028364992, %T A165694 9913191329664,416354035844985,17486869505451444,734448519227368659, %U A165694 30846837807482620140,1295567187911461777284,54413821892163447364896 %N A165694 Number of reduced words of length n in Coxeter group on 43 generators S_i with relations (S_i)^2 = (S_i S_j)^9 = I. %C A165694 The initial terms coincide with those of A170762, although the two sequences are eventually different. %C A165694 Computed with MAGMA using commands similar to those used to compute A154638. %H A165694 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (41, 41, 41, 41, 41, 41, 41, 41, -861). %F A165694 G.f. (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 + %F A165694 1)/(861*t^9 - 41*t^8 - 41*t^7 - 41*t^6 - 41*t^5 - 41*t^4 - 41*t^3 - %F A165694 41*t^2 - 41*t + 1) %K A165694 nonn %O A165694 0,2 %A A165694 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009