Number of rooted n-edge one-vertex maps on the Klein bottle (dually: one-face maps).
A118447
Number of rooted n-edge one-vertex maps on the Klein bottle (dually: one-face maps).
Terms
- a(0) =4a(1) =42a(2) =304a(3) =1870a(4) =10488a(5) =55412a(6) =280768a(7) =1379286a(8) =6616360a(9) =31144300a(10) =144367584a(11) =660746892a(12) =2991902704a(13) =13424189160a(14) =59758420736a(15) =264191654758
External references
- oeis: A118447