Number of unlabeled semi-strong digraphs on n nodes with an even number of pairwise different components.
A054954
Number of unlabeled semi-strong digraphs on n nodes with an even number of pairwise different components.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =5a(4) =88a(5) =5141a(6) =1052471a(7) =706498013
External references
- oeis: A054954