Number of chord diagrams of degree n with an isolated chord.
A018192
Number of chord diagrams of degree n with an isolated chord.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =70a(5) =607a(6) =6577a(7) =85198a(8) =1276563a(9) =21695178a(10) =412195167a(11) =8656676654a(12) =199125735965
External references
- oeis: A018192