Number of reduced words of length n in Coxeter group on 42 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

A162879

Number of reduced words of length n in Coxeter group on 42 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

Terms

    a(0) =1a(1) =42a(2) =1722a(3) =69741a(4) =2824080a(5) =114340800a(6) =4629407580a(7) =187434189600

External references