Number of reduced words of length n in Coxeter group on 22 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.

A163149

Number of reduced words of length n in Coxeter group on 22 generators S_i with relations (S_i)^2 = (S_i S_j)^4 = I.

Terms

    a(0) =1a(1) =22a(2) =462a(3) =9702a(4) =203511a(5) =4268880a(6) =89544840a(7) =1878307200a(8) =39399681090a(9) =826454197800

External references