| 数据
|
12, 144, 556, 2239, 7837, 22714, 68737, 187054, 505040, 1346150, 3472283, 9030485, 23093108, 58964061, 150498240, 381786944, 970985642, 2462695787, 6245279141, 15844141700, 40148846797, 101805976056, 258034064806, 653990198430
|
| 例子
|
n=4的一些解
..0..0..1..0....1..1..0..0....0..0..1..0....0..0..1..0....1..0..1..0
..1..0..1..0....1..1..1..0....0..1..0..0....1..0..1..0....0..1..0..1
..0..0..1..0....1..1..1..0....0..1..0..0....1..0..1..0....1..1..0..0
..1..0..1..0....1..1..1..0....0..1..0..0....1..0..1..0....1..1..0..1
..1..0..1..0....1..1..1..0....0..1..0..0....1..0..1..0....1..1..0..1
..1..0..1..0....1..1..1..0....0..1..0..0....1..0..1..0....1..1..0..1
|