Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 2 or 4 1's.
A295710
Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 2 or 4 1's.
Terms
- a(0) =2a(1) =16a(2) =385a(3) =31985a(4) =9056598a(5) =8705322572
External references
- oeis: A295710