1.
Krasko E, Omelchenko A. Enumeration of Chord Diagrams without Loops and Parallel Chords. Electron. J. Combin. [Internet]. 2017Sep.8 [cited 2026Mar.29];24(3):P3.43. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v24i3p43