Number of self-converse oriented graphs with n nodes.

A005639

Number of self-converse oriented graphs with n nodes.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =18a(4) =102a(5) =848a(6) =12452a(7) =265759a(8) =10454008a(9) =598047612a(10) =63620448978

External references