| 数据
|
4, 29, 153, 818, 4386, 23516, 126162, 676988, 3632880, 19495940, 104627364, 561499304, 3013389264, 16171937024, 86789899608, 465775377536, 2499677308656, 13415022525008, 71994427701360, 386372643782240, 2073546883713888
|
| 例子
|
n=5的一些解
..0..0..1. .0..0..1. .0..1..1。0..1..0. .0..0..1. .0..1..0. .0..1..0
..1..0..1. .0..0..1. .1..0..1. .0..1..0. .0..1..0. .1..1..1. .1..0..1
..1.0...0。1..1..0. .1..0..0. .1..0..1. .1..0..1. .0..1..1。1..0..1
..1..0..1. .1..1..0. .0..0..1. .1..1..0. .0..0..1. .0..1..0. .1..0..0
..1..0..1. .0..0..1. .1..0..1. .0..1..0. .1..1..0. .1..0..1. .1..0..0
|