Number of reduced words of length n in Coxeter group on 27 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
A163179
Number of reduced words of length n in Coxeter group on 27 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
Terms
- a(0) =1a(1) =27a(2) =702a(3) =18252a(4) =474201a(5) =12320100a(6) =320085675a(7) =8316067500a(8) =216057716550
External references
- oeis: A163179