| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|
| C2.1(C42⋊C2) = C42⋊4C4 | central extension (φ=1) | 64 | | C2.1(C4^2:C2) | 64,57 |
| C2.2(C42⋊C2) = C4×C22⋊C4 | central extension (φ=1) | 32 | | C2.2(C4^2:C2) | 64,58 |
| C2.3(C42⋊C2) = C4×C4⋊C4 | central extension (φ=1) | 64 | | C2.3(C4^2:C2) | 64,59 |
| C2.4(C42⋊C2) = C42.12C4 | central extension (φ=1) | 32 | | C2.4(C4^2:C2) | 64,112 |
| C2.5(C42⋊C2) = C23.7Q8 | central stem extension (φ=1) | 32 | | C2.5(C4^2:C2) | 64,61 |
| C2.6(C42⋊C2) = C23.34D4 | central stem extension (φ=1) | 32 | | C2.6(C4^2:C2) | 64,62 |
| C2.7(C42⋊C2) = C42⋊8C4 | central stem extension (φ=1) | 64 | | C2.7(C4^2:C2) | 64,63 |
| C2.8(C42⋊C2) = C42⋊5C4 | central stem extension (φ=1) | 64 | | C2.8(C4^2:C2) | 64,64 |
| C2.9(C42⋊C2) = C23.63C23 | central stem extension (φ=1) | 64 | | C2.9(C4^2:C2) | 64,68 |
| C2.10(C42⋊C2) = C24.C22 | central stem extension (φ=1) | 32 | | C2.10(C4^2:C2) | 64,69 |
| C2.11(C42⋊C2) = C42.6C4 | central stem extension (φ=1) | 32 | | C2.11(C4^2:C2) | 64,113 |
| C2.12(C42⋊C2) = C42.7C22 | central stem extension (φ=1) | 32 | | C2.12(C4^2:C2) | 64,114 |