Four is magic: Difference between revisions

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:*   [[Number names]]
:*   [[Number names]]
:*   [[Self-describing numbers]]
:*   [[Self-describing numbers]]
:*   [[Self-referential sequence]]
:*   [[Summarize and say sequence]]
:*   [[Spelling of ordinal numbers]]
:*   [[Spelling of ordinal numbers]]
:*   [[De_Bruijn_sequences[[
:*   [[De Bruijn sequences]]
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