736568

Appears in sequences

• Number of rooted maps with n edges on torus.at n=5A006300
• Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 1..n-1.at n=32A180785
• 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=29A238396
• 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=17A269919