Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
A297681
Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
Terms
- a(0) =81a(1) =1632a(2) =52889a(3) =1519630a(4) =45865837a(5) =1368968852a(6) =41030621948
External references
- oeis: A297681