cnoocy: green a-e ligature (Default)
(boing!) Cnoocy Mosque O'Witz ([personal profile] cnoocy) wrote 2011-02-05 10:04 pm (UTC)

Hmm. I don't think your assumption about rotational symmetry holds for non-prime N (see for example the 10th graph in Order 4, the Z-shaped one) but I'll need some time to assimilate the rest of this.
(14 comments)

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