Number of unlabeled bicolored graphs on 2n nodes which are invariant when the two color classes are interchanged.
A122082
Number of unlabeled bicolored graphs on 2n nodes which are invariant when the two color classes are interchanged.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =16a(4) =67a(5) =404a(6) =3904a(7) =64840a(8) =1930842a(9) =104698904a(10) =10401039400
External references
- oeis: A122082