| 数据
|
0, 1, 1, 2, 2, 4, 6, 9, 13, 19, 27, 39, 57, 84, 124, 183, 269, 394, 576, 842, 1232, 1805, 2647, 3883, 5695, 8349, 12235, 17926, 26264, 38485, 56401, 82666, 121166, 177592, 260282, 381457, 559033, 819275, 1200683, 1759683, 2578965, 3779704, 5539476
|
| 例子
|
n=9的所有解
..2....2....1....1....1....2....1....1....1....2....2....1....1
..2....2....1....1....1....2....1....1....1....2....2....1....1
..2....2....2....1....1....2....1....2....1....2....2....1....2
..2....2....2....1....2....2....2....2....1....2....2....1....2
..1....2....2....1....2....2....2....2....1....2....2....2....2
..1....2....2....2....2....2....2....2....1....2....1....2....2
..1....1....2....2....2....2....2....2....1....2....1....2....1
..1....1....1....2....2....1....1....2....1....2....1....2....1
..1....1....1....2....2....1....1....2....1....2....1....2....1
|