Extensions 1→N→G→Q→1 with N=C₂ and Q=C₁₇:D₄

Direct product G=NxQ with N=C₂ and Q=C₁₇:D₄

		d	ρ	Label	ID
C₂xC₁₇:D₄		136		C2xC17:D4	272,45

Non-split extensions G=N.Q with N=C₂ and Q=C₁₇:D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₁₇:D₄) = C₃₄.D₄	central extension (φ=1)	272		C2.1(C17:D4)	272,12
C₂.₂(C₁₇:D₄) = D₃₄:C₄	central extension (φ=1)	136		C2.2(C17:D4)	272,14
C₂.₃(C₁₇:D₄) = C₂³.D₁₇	central extension (φ=1)	136		C2.3(C17:D4)	272,19
C₂.₄(C₁₇:D₄) = D₄:D₁₇	central stem extension (φ=1)	136	4+	C2.4(C17:D4)	272,15
C₂.₅(C₁₇:D₄) = D₄.D₁₇	central stem extension (φ=1)	136	4-	C2.5(C17:D4)	272,16
C₂.₆(C₁₇:D₄) = Q₈:D₁₇	central stem extension (φ=1)	136	4+	C2.6(C17:D4)	272,17
C₂.₇(C₁₇:D₄) = C₁₇:Q₁₆	central stem extension (φ=1)	272	4-	C2.7(C17:D4)	272,18

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