Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^10 = I.

A165745

Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^10 = I.

Terms

    a(0) =1a(1) =3a(2) =6a(3) =12a(4) =24a(5) =48a(6) =96a(7) =192a(8) =384a(9) =768a(10) =1533a(11) =3060a(12) =6111a(13) =12204a(14) =24372a(15) =48672a(16) =97200a(17) =194112a(18) =387648a(19) =774144a(20) =1545990a(21) =3087393a(22) =6165624a(23) =12312951a(24) =24589362a(25) =49105752a(26) =98065776a(27) =195840528a(28) =391099872a(29) =781039104

External references