Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 4 neighboring 1's.
A297576
Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 4 neighboring 1's.
Terms
- a(0) =1a(1) =5a(2) =36a(3) =254a(4) =5800a(5) =395011a(6) =38609160a(7) =5752782514
External references
- oeis: A297576