Extensions 1→N→G→Q→1 with N=D7 and Q=C21

Direct product G=N×Q with N=D7 and Q=C21
dρLabelID
D7×C21422D7xC21294,18

Semidirect products G=N:Q with N=D7 and Q=C21
extensionφ:Q→Out NdρLabelID
D7⋊C21 = C7×F7φ: C21/C7C3 ⊆ Out D7426D7:C21294,8


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