Extensions 1→N→G→Q→1 with N=C₅₅ and Q=C₂²

Direct product G=N×Q with N=C₅₅ and Q=C₂²

		d	ρ	Label	ID
C₂×C₁₁₀		220		C2xC110	220,15

Semidirect products G=N:Q with N=C₅₅ and Q=C₂²

extension	φ:Q→Aut N	d	ρ	Label	ID
C₅₅⋊C₂² = D₅×D₁₁	φ: C₂²/C₁ → C₂² ⊆ Aut C₅₅	55	4+	C55:C2^2	220,11
C₅₅⋊₂C₂² = D₁₁₀	φ: C₂²/C₂ → C₂ ⊆ Aut C₅₅	110	2+	C55:2C2^2	220,14
C₅₅⋊₃C₂² = C₁₀×D₁₁	φ: C₂²/C₂ → C₂ ⊆ Aut C₅₅	110	2	C55:3C2^2	220,12
C₅₅⋊₄C₂² = D₅×C₂₂	φ: C₂²/C₂ → C₂ ⊆ Aut C₅₅	110	2	C55:4C2^2	220,13

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