Number of simple Hamiltonian paths connecting opposite corners of a 2n+1 X 2n+1 grid.

A001184

Number of simple Hamiltonian paths connecting opposite corners of a 2n+1 X 2n+1 grid.

Terms

    a(0) =1a(1) =2a(2) =104a(3) =111712a(4) =2688307514

External references