Number of irreducible chord diagrams with 2n nodes.
A000699
Number of irreducible chord diagrams with 2n nodes.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =27a(5) =248a(6) =2830a(7) =38232a(8) =593859a(9) =10401712a(10) =202601898a(11) =4342263000a(12) =101551822350
External references
- oeis: A000699