Number of unlabeled Hamiltonian circuits on n-octahedron (cross polytope); also number of circular chord diagrams with n chords, modulo symmetries.
A003437
Number of unlabeled Hamiltonian circuits on n-octahedron (cross polytope); also number of circular chord diagrams with n chords, modulo symmetries.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =7a(4) =29a(5) =196a(6) =1788a(7) =21994a(8) =326115a(9) =5578431a(10) =107026037a(11) =2269254616a(12) =52638064494
External references
- oeis: A003437