| 数据
|
81, 260, 702, 1786, 4621, 11936, 30656, 77576, 200452, 515424, 1325424, 3365664, 8687760, 22278912, 57336960, 145904256, 376379712, 963592704, 2481143040, 6321940992, 16301843712, 41692741632, 107387375616, 273842325504
|
| 例子
|
n=5的一些解
..2..2....0..0....2..2....2..0....2..2....1..2....0..1....2..2....2..0....2..1
..0..1....1..0....1..1....1..2....0..1....2..0....0..0....1..2....1..2....0..0
..2..0....0..2....0..0....0..0....2..1....1..0....1..2....1..0....0..0....2..0
..0..2....2..1....1..0....1..0....1..2....0..0....0..2....0..0....0..2....0..1
..1..0....0..0....2..1....0..2....0..0....2..1....1..1....2..1....1..0....0..0
..0..0....0..2....2..1....1..2....0..1....2..2....2..2....1..2....2..2....1..1
|