Numbers of rooted hypermaps on the torus with n darts (darts are semi-edges in the particular case of ordinary maps).
A118093
Numbers of rooted hypermaps on the torus with n darts (darts are semi-edges in the particular case of ordinary maps).
Terms
- a(0) =1a(1) =15a(2) =165a(3) =1611a(4) =14805a(5) =131307a(6) =1138261a(7) =9713835a(8) =81968469a(9) =685888171a(10) =5702382933a(11) =47168678571a(12) =388580070741
External references
- oeis: A118093