Number of nX7 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269034
Number of nX7 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =576a(1) =6912a(2) =198816a(3) =4998648a(4) =119790816a(5) =2783857776a(6) =63310818360
External references
- oeis: A269034