Number of well-nested drawings of a rooted tree.
A113882
Number of well-nested drawings of a rooted tree.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =9a(4) =64a(5) =605a(6) =6996a(7) =94556a(8) =1452928a(9) =24921765a(10) =471091360a(11) =9720039120a(12) =217285778700
External references
- oeis: A113882