Number of n-node labeled acyclic digraphs with 2 out-points.
A003026
Number of n-node labeled acyclic digraphs with 2 out-points.
Terms
- a(0) =1a(1) =9a(2) =198a(3) =10710a(4) =1384335a(5) =416990763a(6) =286992935964
External references
- oeis: A003026