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Extensions 1→N→G→Q→1 with N=C2 and Q=C7×2- 1+4

Direct product G=N×Q with N=C2 and Q=C7×2- 1+4
dρLabelID
C14×2- 1+4224C14xES-(2,2)448,1390


Non-split extensions G=N.Q with N=C2 and Q=C7×2- 1+4
extensionφ:Q→Aut NdρLabelID
C2.1(C7×2- 1+4) = C7×C23.32C23central extension (φ=1)224C2.1(C7xES-(2,2))448,1302
C2.2(C7×2- 1+4) = C7×C23.33C23central extension (φ=1)224C2.2(C7xES-(2,2))448,1303
C2.3(C7×2- 1+4) = C7×C23.38C23central stem extension (φ=1)224C2.3(C7xES-(2,2))448,1319
C2.4(C7×2- 1+4) = C7×C22.31C24central stem extension (φ=1)224C2.4(C7xES-(2,2))448,1320
C2.5(C7×2- 1+4) = C7×C22.33C24central stem extension (φ=1)224C2.5(C7xES-(2,2))448,1322
C2.6(C7×2- 1+4) = C7×C22.35C24central stem extension (φ=1)224C2.6(C7xES-(2,2))448,1324
C2.7(C7×2- 1+4) = C7×C22.36C24central stem extension (φ=1)224C2.7(C7xES-(2,2))448,1325
C2.8(C7×2- 1+4) = C7×C23.41C23central stem extension (φ=1)224C2.8(C7xES-(2,2))448,1327
C2.9(C7×2- 1+4) = C7×D4⋊6D4central stem extension (φ=1)224C2.9(C7xES-(2,2))448,1330
C2.10(C7×2- 1+4) = C7×Q8⋊5D4central stem extension (φ=1)224C2.10(C7xES-(2,2))448,1331
C2.11(C7×2- 1+4) = C7×D4×Q8central stem extension (φ=1)224C2.11(C7xES-(2,2))448,1332
C2.12(C7×2- 1+4) = C7×C22.46C24central stem extension (φ=1)224C2.12(C7xES-(2,2))448,1335
C2.13(C7×2- 1+4) = C7×C22.50C24central stem extension (φ=1)224C2.13(C7xES-(2,2))448,1339
C2.14(C7×2- 1+4) = C7×Q8⋊3Q8central stem extension (φ=1)448C2.14(C7xES-(2,2))448,1340
C2.15(C7×2- 1+4) = C7×C22.56C24central stem extension (φ=1)224C2.15(C7xES-(2,2))448,1345
C2.16(C7×2- 1+4) = C7×C22.57C24central stem extension (φ=1)224C2.16(C7xES-(2,2))448,1346
C2.17(C7×2- 1+4) = C7×C22.58C24central stem extension (φ=1)448C2.17(C7xES-(2,2))448,1347

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