Number of nX4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.
A232291
Number of nX4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.
Terms
- a(0) =15a(1) =587a(2) =20563a(3) =718483a(4) =25116353a(5) =877968487a(6) =30690409685
External references
- oeis: A232291