Number of 2Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.
A232296
Number of 2Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.
Terms
- a(0) =1a(1) =15a(2) =97a(3) =587a(4) =3615a(5) =22387a(6) =138505a(7) =856719a(8) =5299373a(9) =32780447a(10) =202770557a(11) =1254280765a(12) =7758622663a(13) =47992624925a(14) =296868677731
External references
- oeis: A232296