| d | ρ | Label | ID | ||
|---|---|---|---|---|---|
| C2×C218 | 436 | C2xC218 | 436,5 | 
| extension | φ:Q→Aut N | d | ρ | Label | ID | 
|---|---|---|---|---|---|
| C218⋊C2 = D218 | φ: C2/C1 → C2 ⊆ Aut C218 | 218 | 2+ | C218:C2 | 436,4 | 
| extension | φ:Q→Aut N | d | ρ | Label | ID | 
|---|---|---|---|---|---|
| C218.C2 = Dic109 | φ: C2/C1 → C2 ⊆ Aut C218 | 436 | 2- | C218.C2 | 436,1 |