Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1's.
A297631
Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1's.
Terms
- a(0) =2a(1) =8a(2) =113a(3) =2370a(4) =201152a(5) =36084211a(6) =21730243952
External references
- oeis: A297631