Extensions 1→N→G→Q→1 with N=C218 and Q=C2

Direct product G=N×Q with N=C218 and Q=C2
dρLabelID
C2×C218436C2xC218436,5

Semidirect products G=N:Q with N=C218 and Q=C2
extensionφ:Q→Aut NdρLabelID
C218⋊C2 = D218φ: C2/C1C2 ⊆ Aut C2182182+C218:C2436,4

Non-split extensions G=N.Q with N=C218 and Q=C2
extensionφ:Q→Aut NdρLabelID
C218.C2 = Dic109φ: C2/C1C2 ⊆ Aut C2184362-C218.C2436,1

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