Number of n-node digraphs with same converse as complement.

A003069

Number of n-node digraphs with same converse as complement.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =88a(6) =632a(7) =8816a(8) =217616a(9) =10240960a(10) =920250720a(11) =155094492288

External references