Number of n X n binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
A268782
Number of n X n binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =5a(2) =72a(3) =1714a(4) =67100a(5) =4725018a(6) =611932378a(7) =148013550916
External references
- oeis: A268782