A291172 Number of maximal chord diagrams of genus g counted up to rotations.

1, 4, 131, 14118, 2976853, 1013582110, 508233789579, 352755124921122, 324039613564554401, 380751174738424280720, 557175918657122229139987, 993806827312044893602464496

Offset: 1

Author

Evgeniy Krasko, Sep 03 2017

Keywords

• nonn

Comments

Also: the number of non-isomorphic one-face one-vertex maps on a genus g surface under orientation-preserving isomorphisms.

Links

• Robert Cori, Michel Marcus, Counting non-isomorphic chord diagrams, Theoretical Computer Science, Volume 204, Issue 1, 1998, Pages 55-73.
• Evgeniy Krasko, Counting Unlabelled Chord Diagrams of Maximal Genus, arXiv:1709.00796 [math.CO], 2017.