Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
A297687
Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
Terms
- a(0) =128a(1) =2570a(2) =94891a(3) =1955750a(4) =59210634a(5) =1487819051a(6) =41030621948
External references
- oeis: A297687