Number of unlabeled strength 3 Eulerian graphs with n nodes.

A007128

Number of unlabeled strength 3 Eulerian graphs with n nodes.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =50a(4) =872a(5) =55056a(6) =14330784a(7) =14168055824

External references