Number of n X n binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A268760
Number of n X n binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =0a(1) =6a(2) =56a(3) =1148a(4) =32056a(5) =1552272a(6) =127676872a(7) =18045771274
External references
- oeis: A268760