Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1's.
A296398
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1's.
Terms
- a(0) =1a(1) =4a(2) =24a(3) =444a(4) =35561a(5) =6200926a(6) =3068113721
External references
- oeis: A296398