Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I.
A164354
Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I.
Terms
- a(0) =1a(1) =5a(2) =20a(3) =80a(4) =320a(5) =1280a(6) =5120a(7) =20470a(8) =81840a(9) =327210a(10) =1308240a(11) =5230560a(12) =20912640a(13) =83612160a(14) =334295130a(15) =1336566780a(16) =5343813270a(17) =21365442180a(18) =85422543120a(19) =341533342080
External references
- oeis: A164354