Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.
A207780
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =98a(3) =791a(4) =6766a(5) =65094a(6) =786907a(7) =9855231a(8) =142116676a(9) =2459545057a(10) =46309750425a(11) =999589825419
External references
- oeis: A207780