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 A164627 #9 Feb 22 2024 13:33:38 %S A164627 1,16,240,3600,54000,810000,12150000,182249880,2733746400,41006169120, %T A164627 615092133600,9226375956000,138395548620000,2075931868500000, %U A164627 31138957615514280,467084058053130000,7006256278106196720 %N A164627 Number of reduced words of length n in Coxeter group on 16 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I. %C A164627 The initial terms coincide with those of A170735, although the two sequences are eventually different. %C A164627 Computed with MAGMA using commands similar to those used to compute A154638. %H A164627 <a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (14,14,14,14,14,14,-105). %F A164627 G.f.: (t^7 + 2*t^6 + 2*t^5 + 2*t^4 + 2*t^3 + 2*t^2 + 2*t + 1)/(105*t^7 - 14*t^6 - 14*t^5 - 14*t^4 - 14*t^3 - 14*t^2 - 14*t + 1). %K A164627 nonn %O A164627 0,2 %A A164627 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009