Number of tree-rooted toroidal maps with 3 faces and n vertices and without separating loops.
A006440
Number of tree-rooted toroidal maps with 3 faces and n vertices and without separating loops.
Terms
- a(0) =10a(1) =805a(2) =23730a(3) =431319a(4) =5862920a(5) =65548890a(6) =636520890a(7) =5555779185a(8) =44603489700
External references
- oeis: A006440