Number of (n+1) X (7+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).
A235086
Number of (n+1) X (7+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).
Terms
- a(0) =5786a(1) =9838a(2) =16390a(3) =29970a(4) =53882a(5) =103702a(6) =196302a(7) =390578a(8) =764386a(9) =1553646a(10) =3106158a(11) =6403898a(12) =12986378a(13) =27053230a(14) =55429622a(15) =116456530a(16) =240620906a(17) =509472502a(18) =1060761214a(19) =2263211058a(20) =4748262482a(21) =10211045710a(22) =21595163358a(23) =46827642938
External references
- oeis: A235086