Spherical growth series for pair of groups, one Gromov hyperbolic, the other not.

A063809

Spherical growth series for pair of groups, one Gromov hyperbolic, the other not.

Terms

    a(0) =1a(1) =108a(2) =2160a(3) =40176a(4) =743040a(5) =13735872a(6) =253912320a(7) =4693641984a(8) =86763294720

External references