| d | ρ | Label | ID | ||
|---|---|---|---|---|---|
| C23×C34 | 272 | C2^3xC34 | 272,54 |
| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|---|---|---|---|---|
| C2.1(C22×C34) = D4×C34 | central stem extension (φ=1) | 136 | C2.1(C2^2xC34) | 272,47 | |
| C2.2(C22×C34) = Q8×C34 | central stem extension (φ=1) | 272 | C2.2(C2^2xC34) | 272,48 | |
| C2.3(C22×C34) = C4○D4×C17 | central stem extension (φ=1) | 136 | 2 | C2.3(C2^2xC34) | 272,49 |