Number of free nonplanar polyenoids with n nodes.

A000953

Number of free nonplanar polyenoids with n nodes.

Terms

    a(0) =1a(1) =5a(2) =24a(3) =109a(4) =465a(5) =1943a(6) =7827a(7) =31095a(8) =121356a(9) =469235a(10) =1797376a(11) =6844290a(12) =25928036

External references