Number of (n+1) X (4+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A234917
Number of (n+1) X (4+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =1200a(1) =3912a(2) =13336a(3) =55492a(4) =221272a(5) =990956a(6) =4151672a(7) =19178920a(8) =82629808a(9) =389619632a(10) =1717580400a(11) =8224749716a(12) =36995561312a(13) =179190965356a(14) =820121135880
External references
- oeis: A234917