Total number of rooted labeled trees over all forests on {1,2,...,n} in which one tree has been specially designated.
A225497
Total number of rooted labeled trees over all forests on {1,2,...,n} in which one tree has been specially designated.
Terms
- a(0) =1a(1) =6a(2) =42a(3) =380a(4) =4320a(5) =59682a(6) =974848a(7) =18423288a(8) =396000000a(9) =9548713790a(10) =255409127424
External references
- oeis: A225497