Number of Hamiltonian cycles on n X n+1 square grid of points.

A222200

Number of Hamiltonian cycles on n X n+1 square grid of points.

Terms

    a(0) =1a(1) =2a(2) =14a(3) =154a(4) =5320a(5) =301384a(6) =49483138a(7) =13916993782

External references