# Extensions 1→N→G→Q→1 with N=C2×Q8 and Q=C18

Direct product G=N×Q with N=C2×Q8 and Q=C18
dρLabelID
Q8×C2×C18288Q8xC2xC18288,369

Semidirect products G=N:Q with N=C2×Q8 and Q=C18
extensionφ:Q→Out NdρLabelID
(C2×Q8)⋊C18 = 2- 1+4⋊C9φ: C18/C3C6 ⊆ Out C2×Q81444(C2xQ8):C18288,349
(C2×Q8)⋊2C18 = C22×Q8⋊C9φ: C18/C6C3 ⊆ Out C2×Q8288(C2xQ8):2C18288,345
(C2×Q8)⋊3C18 = C9×C22⋊Q8φ: C18/C9C2 ⊆ Out C2×Q8144(C2xQ8):3C18288,172
(C2×Q8)⋊4C18 = C9×C4.4D4φ: C18/C9C2 ⊆ Out C2×Q8144(C2xQ8):4C18288,174
(C2×Q8)⋊5C18 = SD16×C18φ: C18/C9C2 ⊆ Out C2×Q8144(C2xQ8):5C18288,183
(C2×Q8)⋊6C18 = C9×C8.C22φ: C18/C9C2 ⊆ Out C2×Q81444(C2xQ8):6C18288,187
(C2×Q8)⋊7C18 = C9×2- 1+4φ: C18/C9C2 ⊆ Out C2×Q81444(C2xQ8):7C18288,372
(C2×Q8)⋊8C18 = C4○D4×C18φ: trivial image144(C2xQ8):8C18288,370

Non-split extensions G=N.Q with N=C2×Q8 and Q=C18
extensionφ:Q→Out NdρLabelID
(C2×Q8).1C18 = C4×Q8⋊C9φ: C18/C6C3 ⊆ Out C2×Q8288(C2xQ8).1C18288,72
(C2×Q8).2C18 = C2×Q8.C18φ: C18/C6C3 ⊆ Out C2×Q8144(C2xQ8).2C18288,347
(C2×Q8).3C18 = C9×C4.10D4φ: C18/C9C2 ⊆ Out C2×Q81444(C2xQ8).3C18288,51
(C2×Q8).4C18 = C9×Q8⋊C4φ: C18/C9C2 ⊆ Out C2×Q8288(C2xQ8).4C18288,53
(C2×Q8).5C18 = C9×C4⋊Q8φ: C18/C9C2 ⊆ Out C2×Q8288(C2xQ8).5C18288,178
(C2×Q8).6C18 = Q16×C18φ: C18/C9C2 ⊆ Out C2×Q8288(C2xQ8).6C18288,184
(C2×Q8).7C18 = Q8×C36φ: trivial image288(C2xQ8).7C18288,169

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