Also called C11×C2.
C22 is Abelian, and is a direct product of two smaller groups.
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Permutation Diagrams
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C22 is the rotational symmetry group of the regular maps
Orientable | sphere | torus | 2 | 3 | 4 | 5 | 6 |
Non-orientable | projective plane | 4 | 5 | 6 | 7 |