Number of outcomes of unlabeled n-team round-robin tournaments.

A000568

Number of outcomes of unlabeled n-team round-robin tournaments.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =12a(6) =56a(7) =456a(8) =6880a(9) =191536a(10) =9733056a(11) =903753248a(12) =154108311168

External references