33310550

Appears in sequences

• Number of polyhedra with n nodes and n faces.at n=10A002856
• Triangle T(n,k) = number of polyhedra (triconnected planar graphs) with n edges and k vertices (or k faces), where (n/3+2) <= k <= (2n/3). Note that there is no such k when n=7.at n=73A058788