Extensions 1→N→G→Q→1 with N=C₂₁ and Q=SD₁₆

Direct product G=N×Q with N=C₂₁ and Q=SD₁₆

		d	ρ	Label	ID
SD₁₆×C₂₁		168	2	SD16xC21	336,112

Semidirect products G=N:Q with N=C₂₁ and Q=SD₁₆

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂₁⋊₁SD₁₆ = C₂₈.D₆	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4	C21:1SD16	336,32
C₂₁⋊₂SD₁₆ = C₄₂.D₄	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4	C21:2SD16	336,33
C₂₁⋊₃SD₁₆ = C₆.D₂₈	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4-	C21:3SD16	336,34
C₂₁⋊₄SD₁₆ = C₂₁⋊SD₁₆	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4+	C21:4SD16	336,35
C₂₁⋊₅SD₁₆ = D₁₂.D₇	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4-	C21:5SD16	336,36
C₂₁⋊₆SD₁₆ = Dic₆⋊D₇	φ: SD₁₆/C₄ → C₂² ⊆ Aut C₂₁	168	4+	C21:6SD16	336,37
C₂₁⋊₇SD₁₆ = C₈⋊D₂₁	φ: SD₁₆/C₈ → C₂ ⊆ Aut C₂₁	168	2	C21:7SD16	336,92
C₂₁⋊₈SD₁₆ = C₃×C₅₆⋊C₂	φ: SD₁₆/C₈ → C₂ ⊆ Aut C₂₁	168	2	C21:8SD16	336,60
C₂₁⋊₉SD₁₆ = C₇×C₂₄⋊C₂	φ: SD₁₆/C₈ → C₂ ⊆ Aut C₂₁	168	2	C21:9SD16	336,76
C₂₁⋊₁₀SD₁₆ = D₄.D₂₁	φ: SD₁₆/D₄ → C₂ ⊆ Aut C₂₁	168	4-	C21:10SD16	336,102
C₂₁⋊₁₁SD₁₆ = C₃×D₄.D₇	φ: SD₁₆/D₄ → C₂ ⊆ Aut C₂₁	168	4	C21:11SD16	336,70
C₂₁⋊₁₂SD₁₆ = C₇×D₄.S₃	φ: SD₁₆/D₄ → C₂ ⊆ Aut C₂₁	168	4	C21:12SD16	336,86
C₂₁⋊₁₃SD₁₆ = Q₈⋊₂D₂₁	φ: SD₁₆/Q₈ → C₂ ⊆ Aut C₂₁	168	4+	C21:13SD16	336,103
C₂₁⋊₁₄SD₁₆ = C₃×Q₈⋊D₇	φ: SD₁₆/Q₈ → C₂ ⊆ Aut C₂₁	168	4	C21:14SD16	336,71
C₂₁⋊₁₅SD₁₆ = C₇×Q₈⋊₂S₃	φ: SD₁₆/Q₈ → C₂ ⊆ Aut C₂₁	168	4	C21:15SD16	336,87

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