A mathematical observation on a 3,000-year-old Chinese text
The 64 hexagrams of the I Ching have two canonical orderings: the binary natural order (0–63) and the King Wen sequence (~1000 BCE). Treating the map between them as a permutation in S₆₄, its cycle decomposition yields [52, 10, 2] with zero fixed points (P≈0.37 for random permutations). 81% of hexagrams are in one orbit, meaning the reordering is highly coupled rather than a collection of small local swaps. We have not found this cycle type discussed in the literature we surveyed.
Properties of the King Wen permutation σ ∈ S₆₄
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