Growth series for affine Coxeter group (or affine Weyl group) D_8.

Terms

a(0) =1a(1) =9a(2) =44a(3) =157a(4) =458a(5) =1158a(6) =2629a(7) =5487a(8) =10703a(9) =19746a(10) =34764a(11) =58808a(12) =96104a(13) =152379a(14) =235247a(15) =354661a(16) =523436a(17) =757850a(18) =1078327a(19) =1510207a(20) =2084608a(21) =2839386a(22) =3820199a(23) =5081680a(24) =6688726a(25) =8717906a(26) =11258994a(27) =14416631a(28) =18312124a(29) =23085388