Number of distinct pairs of partially ordered sets and legal permutations on labeled directed acyclic graphs (DAGs) with n nodes.
A353922
Number of distinct pairs of partially ordered sets and legal permutations on labeled directed acyclic graphs (DAGs) with n nodes.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =48a(4) =1368a(5) =76560a(6) =7163280
External references
- oeis: A353922