| 数据
|
0, 1, 31, 3192, 688912, 336562064, 385875000312, 1059450143900688, 7053540830611404456, 114825973523109367880880, 4597293982413168923370961064, 454594551827670845887783486952736
|
| 例子
|
n=4的一些解
.....0........0........0........0........0........0........0........0
....0.0......1.0......1.2......1.0......1.0......1.2......1.1......1.0
...0.1.2....1.1.0....1.1.0....0.1.2....0.0.1....1.0.1....0.2.0....0.2.1
..1.0.0.2..0.2.1.1..0.2.2.2..0.0.0.2..2.0.1.0..1.1.2.2..2.2.2.0..0.2.2.0
|