Extensions 1→N→G→Q→1 with N=D4 and Q=D15

Direct product G=N×Q with N=D4 and Q=D15
dρLabelID
D4×D15604+D4xD15240,179

Semidirect products G=N:Q with N=D4 and Q=D15
extensionφ:Q→Out NdρLabelID
D4⋊D15 = D4⋊D15φ: D15/C15C2 ⊆ Out D41204+D4:D15240,76
D42D15 = D42D15φ: trivial image1204-D4:2D15240,180

Non-split extensions G=N.Q with N=D4 and Q=D15
extensionφ:Q→Out NdρLabelID
D4.D15 = D4.D15φ: D15/C15C2 ⊆ Out D41204-D4.D15240,77

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