Number of cycles of length (2n+1)^2-1 on 2n+1 X 2n+1 square grid.

A181584

Number of cycles of length (2n+1)^2-1 on 2n+1 X 2n+1 square grid.

Terms

    a(0) =5a(1) =226a(2) =255088a(3) =6663430912

External references