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Search: id:A092240
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| A092240 |
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7 is the number of strip patterns, i.e. 1-dimensional symmetry frieze designs; 17 is the number of wallpaper designs, i.e. 2-dimensional symmetry groups; 230 is the number of crystallographic groups, i.e. 3-dimensional symmetry designs; 4783 is the 4-dimensional extension of the above. |
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