288597

Appears in sequences

• Number of disconnected graphs with n nodes.at n=10A000719
• Coefficient of x in the reduction by x^2 -> x+1 of the polynomial p(n,x) defined at Comments.at n=22A192980
• Triangle read by rows: T(n,k) = number of unlabeled graphs with n nodes and connectivity exactly k (n>=1, 0<=k<=n-1).at n=45A259862
• Triangle read by rows: T(n,k) is the number of graphs with n vertices with edge connectivity k.at n=45A263296