Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.
A163314
Number of reduced words of length n in Coxeter group on 3 generators S_i with relations (S_i)^2 = (S_i S_j)^5 = I.
Terms
- a(0) =1a(1) =3a(2) =6a(3) =12a(4) =24a(5) =45a(6) =84a(7) =159a(8) =300a(9) =564a(10) =1062a(11) =2001a(12) =3768a(13) =7095a(14) =13362a(15) =25164a(16) =47388a(17) =89241a(18) =168060a(19) =316491a(20) =596016a(21) =1122420a(22) =2113746a(23) =3980613a(24) =7496304a(25) =14117067a(26) =26585310a(27) =50065548a(28) =94283616a(29) =177555237
External references
- oeis: A163314