Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.
A205918
Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.
Terms
- a(0) =76a(1) =2684a(2) =67372a(3) =7177505a(4) =160958484a(5) =88272553560
External references
- oeis: A205918