extension | φ:Q→Aut N | d | ρ | Label | ID |
C2.1(D30⋊4C4) = D30⋊4C8 | central extension (φ=1) | 240 | | C2.1(D30:4C4) | 480,33 |
C2.2(D30⋊4C4) = C30.24C42 | central extension (φ=1) | 480 | | C2.2(D30:4C4) | 480,70 |
C2.3(D30⋊4C4) = C60.29D4 | central stem extension (φ=1) | 120 | 4+ | C2.3(D30:4C4) | 480,36 |
C2.4(D30⋊4C4) = C60.31D4 | central stem extension (φ=1) | 240 | 4- | C2.4(D30:4C4) | 480,39 |
C2.5(D30⋊4C4) = D60⋊12C4 | central stem extension (φ=1) | 240 | | C2.5(D30:4C4) | 480,44 |
C2.6(D30⋊4C4) = D60⋊15C4 | central stem extension (φ=1) | 240 | | C2.6(D30:4C4) | 480,45 |
C2.7(D30⋊4C4) = Dic30⋊12C4 | central stem extension (φ=1) | 480 | | C2.7(D30:4C4) | 480,50 |
C2.8(D30⋊4C4) = Dic30⋊15C4 | central stem extension (φ=1) | 480 | | C2.8(D30:4C4) | 480,51 |
C2.9(D30⋊4C4) = D60⋊13C4 | central stem extension (φ=1) | 120 | 4 | C2.9(D30:4C4) | 480,56 |
C2.10(D30⋊4C4) = D60⋊16C4 | central stem extension (φ=1) | 120 | 4 | C2.10(D30:4C4) | 480,57 |
C2.11(D30⋊4C4) = C15⋊9(C23⋊C4) | central stem extension (φ=1) | 120 | 4 | C2.11(D30:4C4) | 480,73 |