| 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: (0,15) (0,8) (0,4) (0,5) (0,13) (0,2) (0,17) (1,15) (1,8) (1,3) (1,4) (1,5) (1,13) (1,17) (2,15) (2,8) (2,3) (2,4) (2,5) (2,13) (3,8) (3,5) (3,17) (4,15) (4,13) (4,17) (5,15) (5,8) (5,17) (6,14) (6,7) (6,10) (6,16) (6,9) (6,12) (7,14) (7,16) (7,9) (8,13) (9,14) (9,10) (9,11) (9,16) (9,12) (10,14) (10,12) (11,14) (11,12) (12,14) (12,16) (13,17) (15,17). |