Number of reduced words of length n in Coxeter group on 39 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.

A163668

Number of reduced words of length n in Coxeter group on 39 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.

Terms

    a(0) =1a(1) =39a(2) =1482a(3) =56316a(4) =2140008a(5) =81319563a(6) =3090115236a(7) =117423309705

External references