A241768 Number of simple connected graphs with n nodes and exactly 2 articulation points (cutpoints).

0, 0, 0, 1, 3, 17, 101, 890, 11468, 239728

Offset: 1

Author

Travis Hoppe and Anna Petrone, Apr 28 2014

Keywords

• nonn
• hard
• more

Links

• Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
• Travis Hoppe and Anna Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644 [math.CO], 2014.
• Eric Weisstein's World of Mathematics, Articulation Vertex

Crossrefs

Column k=2 of A325111.

Cf. other simple connected graph sequences with k articulation points A002218, A241767, A241768, A241769, A241770, A241771.