Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's.
A297756
Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's.
Terms
- a(0) =1a(1) =2a(2) =52a(3) =1181a(4) =109228a(5) =59707529a(6) =108229776807
External references
- oeis: A297756