Number of Hamiltonian paths from NW to SW corners in an n X n grid reduced for symmetry, i.e., where reflection about the x-axis is not counted as distinct.

A384173

Number of Hamiltonian paths from NW to SW corners in an n X n grid reduced for symmetry, i.e., where reflection about the x-axis is not counted as distinct.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =5a(4) =43a(5) =897a(6) =44209a(7) =4467927a(8) =1043906917a(9) =506673590576

External references