Number of ways to linearly arrange the trees over all forests on n labeled nodes.
A218688
Number of ways to linearly arrange the trees over all forests on n labeled nodes.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =106a(5) =975a(6) =11106a(7) =151501a(8) =2415960a(9) =44221869a(10) =915826600a(11) =21211128411a(12) =544126606992
External references
- oeis: A218688