Number of connected unlabeled graphs having n nodes and ceiling(n(n-1)/4) edges such that the complement is also connected.

A054927

Number of connected unlabeled graphs having n nodes and ceiling(n(n-1)/4) edges such that the complement is also connected.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =1a(4) =4a(5) =17a(6) =122a(7) =1512a(8) =32692a(9) =1332942a(10) =105327842a(11) =15931236010

External references