Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal.
A232330
Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal.
Terms
- a(0) =1a(1) =6a(2) =74a(3) =734a(4) =38986a(5) =1047700a(6) =318521414a(7) =21383016966
External references
- oeis: A232330