Number of unlabeled digraphs with n nodes and an odd number of arcs.
A055969
Number of unlabeled digraphs with n nodes and an odd number of arcs.
Terms
- a(0) =0a(1) =1a(2) =6a(3) =104a(4) =4736a(5) =770112a(6) =440994608a(7) =896679244544
External references
- oeis: A055969