| 数据
|
3, 10, 25, 68, 208, 609, 1785, 5375, 16174, 48589, 146652, 443220, 1339225, 4049457, 12250187, 37060306, 112130705, 339304900, 1026763976, 3107142321, 9402919993, 28455721175, 86115053750, 260609950693, 788686494268, 2386813930604
|
| 例子
|
n=7的一些解
..1..0. .0..0. .0..0. .1..0. .0..0. .1..1. .0..0. .1..0. .0..1。0..0
..1..1. .0..0. .1..1. .1..1. .1..1. .1..0. .0..0. .0..0. .0..0. .1..0
..0..0. .0..1。0..1。0..0. .1..1. .1..0. .0..0. .0..1。0..1。0..0
..0..0. .1..1. .1..0. .1..1. .0..0. .1..0. .1..0. .1..1. .0..0. .1..1
..0..0. .0..1。0..1。0..1。0..0. .1..0. .1..1. .1..0. .0..1。1..0
..0..1. .1..0. .1..0. .0..0. .0..1。0..1。0..0. .0..0. .0..0. .0..0
..0...0。1..1. .1..1. .0..1。0..0. .1..1. .1..0. .1..0. .0..0. .0..1
|