Number of 7Xn binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
A269081
Number of 7Xn binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =128a(1) =1760a(2) =43959a(3) =742688a(4) =14011359a(5) =236272677a(6) =4064720816a(7) =67174864630
External references
- oeis: A269081