Extensions 1→N→G→Q→1 with N=SD16 and Q=D4

Direct product G=N×Q with N=SD16 and Q=D4
dρLabelID
D4×SD1632D4xSD16128,2013

Semidirect products G=N:Q with N=SD16 and Q=D4
extensionφ:Q→Out NdρLabelID
SD16⋊1D4 = SD16⋊1D4φ: D4/C4 → C2 ⊆ Out SD1632SD16:1D4128,2006
SD16⋊2D4 = SD16⋊2D4φ: D4/C4 → C2 ⊆ Out SD1632SD16:2D4128,2007
SD16⋊3D4 = SD16⋊3D4φ: D4/C4 → C2 ⊆ Out SD1664SD16:3D4128,2008
SD16⋊4D4 = D8○D8φ: D4/C4 → C2 ⊆ Out SD16164+SD16:4D4128,2024
SD16⋊5D4 = SD16⋊D4φ: D4/C22 → C2 ⊆ Out SD1632SD16:5D4128,1997
SD16⋊6D4 = SD16⋊6D4φ: D4/C22 → C2 ⊆ Out SD1632SD16:6D4128,1998
SD16⋊7D4 = SD16⋊7D4φ: D4/C22 → C2 ⊆ Out SD1632SD16:7D4128,2000
SD16⋊8D4 = SD16⋊8D4φ: D4/C22 → C2 ⊆ Out SD1664SD16:8D4128,2001
SD16⋊9D4 = D8⋊11D4φ: D4/C22 → C2 ⊆ Out SD16168+SD16:9D4128,2020
SD16⋊10D4 = SD16⋊10D4φ: trivial image32SD16:10D4128,2014
SD16⋊11D4 = SD16⋊11D4φ: trivial image64SD16:11D4128,2016
SD16⋊12D4 = D8⋊6D4φ: trivial image164SD16:12D4128,2023

Non-split extensions G=N.Q with N=SD16 and Q=D4
extensionφ:Q→Out NdρLabelID
SD16.1D4 = D8○Q16φ: D4/C4 → C2 ⊆ Out SD16324-SD16.1D4128,2025
SD16.2D4 = D8.13D4φ: D4/C22 → C2 ⊆ Out SD16328-SD16.2D4128,2021
SD16.3D4 = D8○SD16φ: trivial image324SD16.3D4128,2022

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