Number of free polynars with n cells.

A390620

Number of free polynars with n cells.

Terms

    a(0) =1a(1) =2a(2) =9a(3) =60a(4) =467a(5) =4226a(6) =39972a(7) =390903a(8) =3886181a(9) =39154600a(10) =398364048

External references