Number of nX3 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.
A232371
Number of nX3 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.
Terms
- a(0) =4a(1) =74a(2) =586a(3) =4550a(4) =36574a(5) =292122a(6) =2324142a(7) =18574882a(8) =148225606a(9) =1182879814a(10) =9441116934a(11) =75346596778a(12) =601334070966
External references
- oeis: A232371