Journal of Integer Sequences, Vol. 13 (2010), Article 10.2.7

Handshakes Across a (Round) Table

Tomislav Došlić
Faculty of Civil Engineering
University of Zagreb
Kačićeva 26
10000 Zagreb


We establish an explicit formula for the number of chord diagrams on 2n points with k short chords and compute the expected number of short chords in a chord diagram.

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(Concerned with sequences A000108 A001263 A108838.)

Received December 15 2009; revised versions received February 16 2010. Published in Journal of Integer Sequences, February 22 2010.

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