Extensions 1→N→G→Q→1 with N=D4.9D4 and Q=C2

Direct product G=N×Q with N=D4.9D4 and Q=C2
dρLabelID
C2×D4.9D432C2xD4.9D4128,1747

Semidirect products G=N:Q with N=D4.9D4 and Q=C2
extensionφ:Q→Out NdρLabelID
D4.9D41C2 = C424D4φ: C2/C1C2 ⊆ Out D4.9D4164D4.9D4:1C2128,929
D4.9D42C2 = C425D4φ: C2/C1C2 ⊆ Out D4.9D4168+D4.9D4:2C2128,931
D4.9D43C2 = M4(2)⋊C23φ: C2/C1C2 ⊆ Out D4.9D4168+D4.9D4:3C2128,1751
D4.9D44C2 = C42.13C23φ: C2/C1C2 ⊆ Out D4.9D4328-D4.9D4:4C2128,1754
D4.9D45C2 = D811D4φ: C2/C1C2 ⊆ Out D4.9D4168+D4.9D4:5C2128,2020
D4.9D46C2 = D8.13D4φ: C2/C1C2 ⊆ Out D4.9D4328-D4.9D4:6C2128,2021
D4.9D47C2 = D8○SD16φ: C2/C1C2 ⊆ Out D4.9D4324D4.9D4:7C2128,2022
D4.9D48C2 = C42.313C23φ: trivial image164D4.9D4:8C2128,1750

Non-split extensions G=N.Q with N=D4.9D4 and Q=C2
extensionφ:Q→Out NdρLabelID
D4.9D4.1C2 = C42.2D4φ: C2/C1C2 ⊆ Out D4.9D4164D4.9D4.1C2128,135
D4.9D4.2C2 = C42.14D4φ: C2/C1C2 ⊆ Out D4.9D4328-D4.9D4.2C2128,933

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