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Figure 19:
Map, with Tukey pentagons, of the cisternary pentagonal flexagon.

Figure 20:
Permutation of the pentagons along the strip for a binary pentagonal flexagon. Three cycles are manifected by the three blocks in the permutation. That two of them result from recursive replacement manifests itself in the size and cyclic structure of two of the blocks.

Figure 21:
Top side of the cisternary pentagonal flexagon cutout. The flexagon has eleven faces. Because the number is odd, one of the sectors has to be turned over to get the other with a smooth match. The figure will make one flexagon.

Figure 22:
Bottom side of the cisternary pentagonal flexagon cutout.

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