Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).
A234660
Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).
Terms
- a(0) =1820a(1) =9774a(2) =52646a(3) =286668a(4) =1566596a(5) =8659270a(6) =48048220a(7) =269752200a(8) =1520415050a(9) =8671291020a(10) =49644175568a(11) =287539714338
External references
- oeis: A234660