| 数据
|
237, 694, 2040, 5997, 17622, 51768, 152106, 446932, 1313199, 3858468, 11337057, 33310953, 97875387, 287580727, 844979241, 2482746381, 7294888809, 21434086890, 62978352609, 185045107303, 543705739710, 1597534436091, 4693929248088
|
| 例子
|
n=4的一些解
..1…..0…..2…..0…..1…..2…..1…..2…..2…..2…..0…..2…..1…..0
..0....0....1....1....2....1....1....1....2....0....0....0....2....2....0....0
..0....2....2....2....0....2....1....1....1....2....0....2....0....1....2....1
..1....1....1....2....2....0....2....2....0....2....1....2....0....2....0....2
..2....1....1....0....2....0....2....2....2....2....2....1....2....1....2....0
..2....2....1....0....1....0....0....1....2....0....2....1....2....1....0....2
..1....0....1....2....2....2....0....0....1....1....0....1....1....2....0....0
..2....1....0....0....0....1....0....0....2....2....2....0....2....2....1....0
|