Extensions 1→N→G→Q→1 with N=C4 and Q=C4×D9

Direct product G=N×Q with N=C4 and Q=C4×D9
dρLabelID
C42×D9144C4^2xD9288,81

Semidirect products G=N:Q with N=C4 and Q=C4×D9
extensionφ:Q→Aut NdρLabelID
C41(C4×D9) = D36⋊C4φ: C4×D9/Dic9C2 ⊆ Aut C4144C4:1(C4xD9)288,103
C42(C4×D9) = C4×D36φ: C4×D9/C36C2 ⊆ Aut C4144C4:2(C4xD9)288,83
C43(C4×D9) = C4⋊C4×D9φ: C4×D9/D18C2 ⊆ Aut C4144C4:3(C4xD9)288,101

Non-split extensions G=N.Q with N=C4 and Q=C4×D9
extensionφ:Q→Aut NdρLabelID
C4.1(C4×D9) = C18.Q16φ: C4×D9/Dic9C2 ⊆ Aut C4288C4.1(C4xD9)288,16
C4.2(C4×D9) = C18.D8φ: C4×D9/Dic9C2 ⊆ Aut C4144C4.2(C4xD9)288,17
C4.3(C4×D9) = Dic18⋊C4φ: C4×D9/Dic9C2 ⊆ Aut C4724C4.3(C4xD9)288,32
C4.4(C4×D9) = Dic93Q8φ: C4×D9/Dic9C2 ⊆ Aut C4288C4.4(C4xD9)288,97
C4.5(C4×D9) = D36.C4φ: C4×D9/Dic9C2 ⊆ Aut C41444C4.5(C4xD9)288,117
C4.6(C4×D9) = C424D9φ: C4×D9/C36C2 ⊆ Aut C4722C4.6(C4xD9)288,12
C4.7(C4×D9) = C36.45D4φ: C4×D9/C36C2 ⊆ Aut C4288C4.7(C4xD9)288,24
C4.8(C4×D9) = C2.D72φ: C4×D9/C36C2 ⊆ Aut C4144C4.8(C4xD9)288,28
C4.9(C4×D9) = C4×Dic18φ: C4×D9/C36C2 ⊆ Aut C4288C4.9(C4xD9)288,78
C4.10(C4×D9) = D36.2C4φ: C4×D9/C36C2 ⊆ Aut C41442C4.10(C4xD9)288,112
C4.11(C4×D9) = C36.Q8φ: C4×D9/D18C2 ⊆ Aut C4288C4.11(C4xD9)288,14
C4.12(C4×D9) = C4.Dic18φ: C4×D9/D18C2 ⊆ Aut C4288C4.12(C4xD9)288,15
C4.13(C4×D9) = C36.53D4φ: C4×D9/D18C2 ⊆ Aut C41444C4.13(C4xD9)288,29
C4.14(C4×D9) = C4⋊C47D9φ: C4×D9/D18C2 ⊆ Aut C4144C4.14(C4xD9)288,102
C4.15(C4×D9) = M4(2)×D9φ: C4×D9/D18C2 ⊆ Aut C4724C4.15(C4xD9)288,116
C4.16(C4×D9) = C16×D9central extension (φ=1)1442C4.16(C4xD9)288,4
C4.17(C4×D9) = C16⋊D9central extension (φ=1)1442C4.17(C4xD9)288,5
C4.18(C4×D9) = C4×C9⋊C8central extension (φ=1)288C4.18(C4xD9)288,9
C4.19(C4×D9) = C42.D9central extension (φ=1)288C4.19(C4xD9)288,10
C4.20(C4×D9) = C8×Dic9central extension (φ=1)288C4.20(C4xD9)288,21
C4.21(C4×D9) = C72⋊C4central extension (φ=1)288C4.21(C4xD9)288,23
C4.22(C4×D9) = C422D9central extension (φ=1)144C4.22(C4xD9)288,82
C4.23(C4×D9) = C2×C8×D9central extension (φ=1)144C4.23(C4xD9)288,110
C4.24(C4×D9) = C2×C8⋊D9central extension (φ=1)144C4.24(C4xD9)288,111

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