Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.
A295415
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.
Terms
- a(0) =37a(1) =5854a(2) =457178a(3) =37927609a(4) =3232240913a(5) =272714953724
External references
- oeis: A295415