Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^11 = I.
A166331
Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^11 = I.
Terms
- a(0) =1a(1) =5a(2) =20a(3) =80a(4) =320a(5) =1280a(6) =5120a(7) =20480a(8) =81920a(9) =327680a(10) =1310720a(11) =5242870a(12) =20971440a(13) =83885610a(14) =335541840a(15) =1342164960a(16) =5368650240a(17) =21474562560a(18) =85898096640a(19) =343591772160
External references
- oeis: A166331