245696

Appears in sequences

• Number of n-celled polygons with perimeter 2n+2 on square lattice.at n=11A006725
• Triangle T(n,k), n>=1, read by rows, where T(n,k) is the number of lattice polygons with area n and perimeter 2*k.at n=39A008855
• Triangle T(n,k), n>=1, 2<=k<=n+1, read by rows, where T(n,k) is the number of self-avoiding square-lattice polygons by area n and perimeter 2*k.at n=77A259857