Number of reduced words of length n in Coxeter group on 27 generators S_i with relations (S_i)^2 = (S_i S_j)^16 = I.

A167942

Number of reduced words of length n in Coxeter group on 27 generators S_i with relations (S_i)^2 = (S_i S_j)^16 = I.

Terms

    a(0) =1a(1) =27a(2) =702a(3) =18252a(4) =474552a(5) =12338352a(6) =320797152a(7) =8340725952a(8) =216858874752

External references