Number of reduced words of length n in Coxeter group on 13 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

A162768

Number of reduced words of length n in Coxeter group on 13 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

Terms

    a(0) =1a(1) =13a(2) =156a(3) =1794a(4) =20592a(5) =235950a(6) =2703558a(7) =30975516a(8) =354897114a(9) =4066164102a(10) =46587289320a(11) =533764778118

External references