Number of n-node connected graphs without points of degree 2.

A005636

Number of n-node connected graphs without points of degree 2.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =2a(4) =5a(5) =32a(6) =234a(7) =3638a(8) =106147a(9) =6039504a(10) =633754161a(11) =120131932774

External references