Number of n-node graphs containing a 4-cycle.

A039751

Number of n-node graphs containing a 4-cycle.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =3a(5) =16a(6) =112a(7) =927a(8) =11995a(9) =273438a(10) =12000099a(11) =1018972683a(12) =165091020547

External references