Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1's.
A297513
Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 3 neighboring 1's.
Terms
- a(0) =1a(1) =5a(2) =49a(3) =624a(4) =19187a(5) =1995817a(6) =424461759a(7) =156485261895
External references
- oeis: A297513