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 A162756 #5 Nov 23 2016 15:17:16 %S A162756 1,10,90,765,6480,54720,462060,3900960,32934240,278047440,2347418880, %T A162756 19818097920,167314426560,1412553116160,11925488816640, %U A162756 100681016106240,850000127201280,7176131549061120,60584536830274560,511485342455439360 %N A162756 Number of reduced words of length n in Coxeter group on 10 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I. %C A162756 The initial terms coincide with those of A003952, although the two sequences are eventually different. %C A162756 Computed with MAGMA using commands similar to those used to compute A154638. %H A162756 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (8, 8, -36). %F A162756 G.f.: (t^3 + 2*t^2 + 2*t + 1)/(36*t^3 - 8*t^2 - 8*t + 1) %K A162756 nonn %O A162756 0,2 %A A162756 _John Cannon_ and _N. J. A. Sloane_, Dec 03 2009