Number of nX7 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
A268797
Number of nX7 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =576a(1) =4360a(2) =41248a(3) =561116a(4) =7801688a(5) =104971262a(6) =1384570516a(7) =17967375416a(8) =230262982692
External references
- oeis: A268797