Extensions 1→N→G→Q→1 with N=C2 and Q=D81
Direct product G=N×Q with N=C2 and Q=D81
Non-split extensions G=N.Q with N=C2 and Q=D81
extension | φ:Q→Aut N | d | ρ | Label | ID |
C2.D81 = Dic81 | central extension (φ=1) | 324 | 2- | C2.D81 | 324,1 |
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