Number of (n+1) X (4+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).
A234662
Number of (n+1) X (4+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) =68086a(1) =286668a(2) =1219652a(3) =5359466a(4) =23814574a(5) =109044744a(6) =504872642a(7) =2403596054a(8) =11568505044a(9) =57131064334a(10) =285141511326
External references
- oeis: A234662