| 数据
|
8, 64, 200, 643, 1835, 4534, 11511, 27012, 62814, 144676, 325111, 733469, 1635998, 3639007, 8091148, 17910532, 39681294, 87775953, 194044225, 429056388, 947971827, 2094875648, 4628499152, 10225059546, 22590584639, 49903794405
|
| 例子
|
n=4的一些解
..1..1..1..1....1..1..0..1....1..0..0..1....0..0..1..0....1..1..0..1
..1..1..1..1....0..0..1..0....1..0..0..1....0..0..1..0....1..0..1..0
..1..1..1..1....0..1..0..1....1..0..0..1....0..0..1..0....1..0..0..1
..1..1..1..1....0..0..1..0....1..0..0..1....0..0..1..0....1..0..0..1
|