Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^11 = I.

A166367

Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^11 = I.

Terms

    a(0) =1a(1) =9a(2) =72a(3) =576a(4) =4608a(5) =36864a(6) =294912a(7) =2359296a(8) =18874368a(9) =150994944a(10) =1207959552a(11) =9663676380a(12) =77309410752a(13) =618475283748

External references