Number of reduced words of length n in Coxeter group on 28 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
A163187
Number of reduced words of length n in Coxeter group on 28 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
Terms
- a(0) =1a(1) =28a(2) =756a(3) =20412a(4) =550746a(5) =14859936a(6) =400943088a(7) =10818033408a(8) =291886435386
External references
- oeis: A163187