170682domain: NAppears in sequencesa(n) = A027113(n, 2n-4).at n=11A027122Number of (n+1) X (3+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=9A235082