Consider all complete bipartite graphs on 2n nodes and all possible assignment of weights w(i) (for nodes i=1,...,2n); sequence gives maximal number of ways to orient the edges of the graph so that each node i has w(i) edges oriented towards it (for i=1,...,2n).

A014627

Consider all complete bipartite graphs on 2n nodes and all possible assignment of weights w(i) (for nodes i=1,...,2n); sequence gives maximal number of ways to orient the edges of the graph so that each node i has w(i) edges oriented towards it (for i=1,...,2n).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =15a(6) =90a(7) =310a(8) =1860a(9) =8280a(10) =163560a(11) =1346940a(12) =21476700

External references