Number of n-node simple graphs having clique number 2.

A052450

Number of n-node simple graphs having clique number 2.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =6a(4) =13a(5) =37a(6) =106a(7) =409a(8) =1896a(9) =12171a(10) =105070a(11) =1262179a(12) =20797001a(13) =467871368a(14) =14232552451a(15) =581460254000

External references