Number of 7Xn binary arrays with no two ones adjacent horizontally, diagonally or antidiagonally.
A228688
Number of 7Xn binary arrays with no two ones adjacent horizontally, diagonally or antidiagonally.
Terms
- a(0) =128a(1) =577a(2) =21305a(3) =176032a(4) =4008817a(5) =44171841a(6) =806190208a(7) =10258304689a(8) =168184756793
External references
- oeis: A228688