Extensions 1→N→G→Q→1 with N=D9 and Q=C21

Direct product G=N×Q with N=D9 and Q=C21
dρLabelID
D9×C211262D9xC21378,32

Semidirect products G=N:Q with N=D9 and Q=C21
extensionφ:Q→Out NdρLabelID
D9⋊C21 = C7×C9⋊C6φ: C21/C7C3 ⊆ Out D9636D9:C21378,35


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