Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.
A232147
Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.
Terms
- a(0) =15a(1) =1299a(2) =67725a(3) =3409361a(4) =177194147a(5) =9181257593a(6) =475203378037
External references
- oeis: A232147