| d | ρ | Label | ID | ||
|---|---|---|---|---|---|
| C2×Q8⋊2D9 | 144 | C2xQ8:2D9 | 288,152 |
| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|---|---|---|---|---|
| C2.1(Q8⋊2D9) = C4.Dic18 | central extension (φ=1) | 288 | C2.1(Q8:2D9) | 288,15 | |
| C2.2(Q8⋊2D9) = C18.D8 | central extension (φ=1) | 144 | C2.2(Q8:2D9) | 288,17 | |
| C2.3(Q8⋊2D9) = Q8⋊2Dic9 | central extension (φ=1) | 288 | C2.3(Q8:2D9) | 288,43 |