248371380

Appears in sequences

• Number of rooted genus-2 maps with n edges.at n=9A006301
• Triangle T(n,k) read by rows: T(n,k) is the number of rooted genus-k maps with n edges, n>=0, 0<=k<=n.at n=47A238396
• Triangle read by rows: T(n,g) is the number of rooted maps with n edges on an orientable surface of genus g.at n=27A269919