| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 17, and the edges are: (0,3) (0,10) (0,17) (1,13) (1,14) (2,11) (3,11) (5,6) (5,13) (6,12) (6,14) (7,16) (8,17) (10,17) (12,13) (12,15) (12,14) (13,15). |