Number of forests of rooted trees with n nodes on a circle without crossing edges.
A054727
Number of forests of rooted trees with n nodes on a circle without crossing edges.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =33a(4) =181a(5) =1083a(6) =6854a(7) =45111a(8) =305629a(9) =2117283a(10) =14929212a(11) =106790500a(12) =773035602a(13) =5652275723a(14) =41683912721a(15) =309691336359
External references
- oeis: A054727