Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^17 = I.

A168682

Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^17 = 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) =5242880a(12) =20971520a(13) =83886080a(14) =335544320a(15) =1342177280a(16) =5368709120a(17) =21474836470a(18) =85899345840a(19) =343597383210

External references