4366441128domain: NAppears in sequencesNumber of rooted genus-2 maps with n edges.at n=10A006301Triangle 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=57A238396Triangle read by rows: T(n,g) is the number of rooted maps with n edges on an orientable surface of genus g.at n=32A269919