Number of n X n toroidal 0..2 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
A184098
Number of n X n toroidal 0..2 arrays with each element having the sum of its vertical neighbors equal to the sum of its horizontal neighbors.
Terms
- a(0) =3a(1) =9a(2) =87a(3) =361a(4) =1383a(5) =7569a(6) =20247a(7) =126025a(8) =299463a(9) =1912689
External references
- oeis: A184098