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 A165645 #6 Nov 23 2016 22:14:32 %S A165645 1,33,1056,33792,1081344,34603008,1107296256,35433480192, %T A165645 1133871366144,36283883716080,1161084278897664,37154696924185104, %U A165645 1188950301556638720,38046409649259331584,1217485108758599172096,38959523479708791472128 %N A165645 Number of reduced words of length n in Coxeter group on 33 generators S_i with relations (S_i)^2 = (S_i S_j)^9 = I. %C A165645 The initial terms coincide with those of A170752, although the two sequences are eventually different. %C A165645 Computed with MAGMA using commands similar to those used to compute A154638. %H A165645 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (31, 31, 31, 31, 31, 31, 31, 31, -496). %F A165645 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 A165645 1)/(496*t^9 - 31*t^8 - 31*t^7 - 31*t^6 - 31*t^5 - 31*t^4 - 31*t^3 - %F A165645 31*t^2 - 31*t + 1) %K A165645 nonn %O A165645 0,2 %A A165645 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009