Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.
A297719
Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.
Terms
- a(0) =37a(1) =2651a(2) =68919a(3) =2699832a(4) =107787351a(5) =4021047904a(6) =154327332017
External references
- oeis: A297719