Number of nX6 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.
A297312
Number of nX6 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.
Terms
- a(0) =21a(1) =654a(2) =13937a(3) =340825a(4) =8273245a(5) =200646607a(6) =4869858862a(7) =118156684121
External references
- oeis: A297312