Number of simple chord diagrams with n chords, up to rotation.
A278993
Number of simple chord diagrams with n chords, up to rotation.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =4a(4) =21a(5) =176a(6) =1893a(7) =25030a(8) =382272a(9) =6604535a(10) =127222636a(11) =2702798537a(12) =62778105236
External references
- oeis: A278993