79853

Appears in sequences

• Number of unlabeled planar simple graphs with n nodes.at n=9A005470
• Triangle read by rows: T(n,k) is the number of graphs with n vertices and skewness k (n >= 1 and k >= 0).at n=28A294224
• Triangle T(n,k) read by rows: number of n-node simple graphs with rectilinear crossing number k (k=0..A014540(n)).at n=40A298445