Extensions 1→N→G→Q→1 with N=C242 and Q=C2

Direct product G=N×Q with N=C242 and Q=C2
dρLabelID
C2×C242484C2xC242484,4

Semidirect products G=N:Q with N=C242 and Q=C2
extensionφ:Q→Aut NdρLabelID
C242⋊C2 = D242φ: C2/C1C2 ⊆ Aut C2422422+C242:C2484,3

Non-split extensions G=N.Q with N=C242 and Q=C2
extensionφ:Q→Aut NdρLabelID
C242.C2 = Dic121φ: C2/C1C2 ⊆ Aut C2424842-C242.C2484,1

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