Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
A162960
Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
Terms
- a(0) =1a(1) =9a(2) =72a(3) =576a(4) =4572a(5) =36288a(6) =288036a(7) =2286144a(8) =18145260a(9) =144020016a(10) =1143094932a(11) =9072809424a(12) =72011403324a(13) =571558593312
External references
- oeis: A162960