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 A164691 #10 Feb 25 2024 08:34:54 %S A164691 1,46,2070,93150,4191750,188628750,8488293750,381973217715, %T A164691 17188794750600,773495761682160,34807309181429400,1566328908922272000, %U A164691 70484800710609945000,3171816023387294250000,142731720665871344945190 %N A164691 Number of reduced words of length n in Coxeter group on 46 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I. %C A164691 The initial terms coincide with those of A170765, although the two sequences are eventually different. %C A164691 Computed with MAGMA using commands similar to those used to compute A154638. %H A164691 <a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (44, 44, 44, 44, 44, 44, -990). %F A164691 G.f.: (t^7 + 2*t^6 + 2*t^5 + 2*t^4 + 2*t^3 + 2*t^2 + 2*t + 1)/(990*t^7 - 44*t^6 - 44*t^5 - 44*t^4 - 44*t^3 - 44*t^2 - 44*t + 1). %K A164691 nonn %O A164691 0,2 %A A164691 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009