| d | ρ | Label | ID | ||
|---|---|---|---|---|---|
| C32×Dic7 | 252 | C3^2xDic7 | 252,20 |
| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|---|---|---|---|---|
| C3⋊(C3×Dic7) = C3×Dic21 | φ: C3×Dic7/C42 → C2 ⊆ Aut C3 | 84 | 2 | C3:(C3xDic7) | 252,22 |
| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|---|---|---|---|---|
| C3.(C3×Dic7) = C9×Dic7 | central extension (φ=1) | 252 | 2 | C3.(C3xDic7) | 252,4 |