A241703 Number of simple unlabeled n-node graphs of edge-connectivity 4.

0, 0, 0, 0, 1, 3, 25, 378, 14306, 1141575, 164245876, 39637942895

Offset: 1

Author

Travis Hoppe and Anna Petrone, Apr 27 2014

Keywords

• nonn
• hard
• more

Links

• Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs
• T. Hoppe and A. Petrone, Integer sequence discovery from small graphs, arXiv preprint arXiv:1408.3644 [math.CO], 2014.
• Jens M. Schmidt, Combinatorial data.
• Eric Weisstein's World of Mathematics, k-Edge Connected Graph.

Crossrefs

Column k=4 of A263296.

Cf. other edge-connectivity unlabeled graph sequences A052446, A052447, A052448, A241704, A241705.

Extensions

a(11) by Jens M. Schmidt, Feb 18 2019

a(12) from Jens M. Schmidt's web page, Jan 10 2021