| Graph Info | |
|---|---|
| Vertices | 18 | 
| Edges | 27 | 
| Regularity | 3 | 
| Eigenspaces | 12 | 
`0, -1.87019, -0.2068, -1.75949^2, -1.66669, -0.3696^2, -1.47999, -1.43909^2, -0.6667^3 -1.33329, -0.7651^2, -0.7764`
  
| Design Info | |
|---|---|
`k`-graphical design   | 
    
`k=8`
  | 
  
| Efficacy | `9/11`  | 
  
| Optimal | yes | 
| Maximal | yes | 
| Extremal | no | 
| 1-Neighborhood is the graph | yes |