Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.
A295212
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.
Terms
- a(0) =1a(1) =69a(2) =1162a(3) =27208a(4) =775547a(5) =18444470a(6) =444447937a(7) =10896495280a(8) =265837272259
External references
- oeis: A295212