Number of reduced words of length n in Coxeter group on 6 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

A162743

Number of reduced words of length n in Coxeter group on 6 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

Terms

    a(0) =1a(1) =6a(2) =30a(3) =135a(4) =600a(5) =2640a(6) =11610a(7) =51000a(8) =224040a(9) =984060a(10) =4322400a(11) =18985440a(12) =83390760a(13) =366280800a(14) =1608831840a(15) =7066542960a(16) =31038691200a(17) =136332618240a(18) =598819808160

External references