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    • CommentRowNumber1.
    • CommentAuthorzskoda
    • CommentTimeDec 6th 2017

    Few words added at Catalan number.

    • CommentRowNumber2.
    • CommentAuthorTodd_Trimble
    • CommentTimeDec 6th 2017

    I added “binary” to tree.

    What does this have to do with the Cayley-Dickson construction?

    • CommentRowNumber3.
    • CommentAuthorzskoda
    • CommentTimeDec 7th 2017

    Thanks. This link to Cayley-Dickson is left from the version 1 written by Urs, I have no idea.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeDec 8th 2017

    Thanks for the alert.

    I forget why I added that link to the Cayley-Dickson construction. Worse, I have no memory of adding it in the first place. (?)

    Googling for “Cayley-Dickson” and “Catalan number” does yield a couple of articles that mention both, but I don’t see any real connection. So I removed the link now.