# Extensions 1→N→G→Q→1 with N=C2 and Q=D7×C42

Direct product G=N×Q with N=C2 and Q=D7×C42
dρLabelID
D7×C2×C42224D7xC2xC4^2448,924

Non-split extensions G=N.Q with N=C2 and Q=D7×C42
extensionφ:Q→Aut NdρLabelID
C2.1(D7×C42) = D7×C4×C8central extension (φ=1)224C2.1(D7xC4^2)448,218
C2.2(D7×C42) = C42×Dic7central extension (φ=1)448C2.2(D7xC4^2)448,464
C2.3(D7×C42) = Dic7.5C42central stem extension (φ=1)448C2.3(D7xC4^2)448,182
C2.4(D7×C42) = Dic7⋊C42central stem extension (φ=1)448C2.4(D7xC4^2)448,183
C2.5(D7×C42) = D7×C2.C42central stem extension (φ=1)224C2.5(D7xC4^2)448,197
C2.6(D7×C42) = D14⋊C42central stem extension (φ=1)224C2.6(D7xC4^2)448,200
C2.7(D7×C42) = C4×C8⋊D7central stem extension (φ=1)224C2.7(D7xC4^2)448,221
C2.8(D7×C42) = D14.C42central stem extension (φ=1)224C2.8(D7xC4^2)448,223
C2.9(D7×C42) = D7×C8⋊C4central stem extension (φ=1)224C2.9(D7xC4^2)448,238
C2.10(D7×C42) = Dic7.C42central stem extension (φ=1)224C2.10(D7xC4^2)448,241
C2.11(D7×C42) = D14.4C42central stem extension (φ=1)224C2.11(D7xC4^2)448,242
C2.12(D7×C42) = C4×Dic7⋊C4central stem extension (φ=1)448C2.12(D7xC4^2)448,465
C2.13(D7×C42) = C4×D14⋊C4central stem extension (φ=1)224C2.13(D7xC4^2)448,472

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