A338584 Number of unlabeled nonplanar connected graphs with n edges with minimum degree 3 at each node that are not 3-connected.

1, 6, 28, 128, 558, 2421, 10675, 47810, 217572, 1006211

Offset: 13

Author

Hugo Pfoertner, Nov 21 2020

Keywords

• nonn
• more

Links

• Hugo Pfoertner, Illustration of terms a(13) and a(14).

Crossrefs

Cf. A006290, A007112, A123545, A338583, A338593, A338594, A338604.

Formula

a(n) = A338593(n) - A338583(n).