Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1's.
A297538
Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1's.
Terms
- a(0) =1a(1) =2a(2) =35a(3) =275a(4) =12161a(5) =3015179a(6) =1610981344
External references
- oeis: A297538