Number of free nonplanar polyenoids with n nodes and symmetry point group C_{2v}.

A000947

Number of free nonplanar polyenoids with n nodes and symmetry point group C_{2v}.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =15a(5) =44a(6) =56a(7) =177a(8) =212a(9) =706a(10) =792a(11) =2714a(12) =2961

External references