1470293675

Appears in sequences

• Number of connected regular graphs of degree 6 (or sextic graphs) with n nodes.at n=15A006822
• Irregular triangle C(n,g) read by rows, counting the connected 6-regular simple graphs on n vertices with girth at least g.at n=11A184961
• Number of not necessarily connected 6-regular simple graphs on n vertices with girth exactly 3.at n=15A185163