Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.
A163391
Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.
Terms
- a(0) =1a(1) =9a(2) =72a(3) =576a(4) =4608a(5) =36828a(6) =294336a(7) =2352420a(8) =18801216a(9) =150264576a(10) =1200956652a(11) =9598382640a(12) =76712967828a(13) =613111567824
External references
- oeis: A163391