| 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: (0,12) (0,4) (0,7) (0,11) (0,1) (1,8) (1,16) (1,13) (2,12) (2,8) (2,9) (2,7) (4,15) (4,7) (4,13) (4,6) (6,12) (6,10) (7,15) (7,10) (7,11) (7,13) (8,12) (8,10) (9,12) (9,13) (10,15) (12,16). |