Number of reduced words of length n in Coxeter group on 40 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
A163223
Number of reduced words of length n in Coxeter group on 40 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.
Terms
- a(0) =1a(1) =40a(2) =1560a(3) =60840a(4) =2371980a(5) =92476800a(6) =3605409600a(7) =140564736000
External references
- oeis: A163223