| 数据
|
1, 15, 96, 431, 2104, 10734, 53995, 270584, 1360373, 6842490, 34397698, 172916932, 869345996, 4370695957, 21973721785, 110473467193, 555410077197, 2792348324294, 14038652292860, 70579951706145, 354843911694537
|
| 例子
|
n=7的一些解
..0..0..0..0..0. .1..1..1..0..0. .0..0..0..1..0. .0...0..1..0..0
..1..1..1..0..1. .1..1..0..0..0. .0..1..1..1..0. .1..1..1..0..1
..1..1..0..1..1. .1..0..0..1..0. .0..1..0..0..0. .1..0..0..1..1
..1..0..0..0..0. .0..1..1..1..0. .0..0..1..1..1. .0..0..1..1..1
..0..1..0..0..0. .0..1..0..0..1. .0..1..0..0..1. .0..0..0..0..0
..1..1..0..0..0. .1..1..0..1..1. .0..1..0..0..1. .0..1..0..0..0
..0..0..0..0..0. .0...0..1..1..1。0..1..1..1..0. .1..1..0..0..0
|