| 数据
|
25, 625, 3399, 11511, 30415, 68737, 139341, 260597, 457869, 765241, 1227499, 1902387, 2863155, 4201417, 6030337, 8488161, 11742113, 15992673, 21478255, 28480303, 37328823, 48408369, 62164501, 79110733, 99835989, 125012585
|
| 例子
|
n=4的一些解
..1..1..1..0..0..1..0....0..1..0..0..1..0..1....0..0..1..0..0..1..0
..0..1..0..1..0..0..1....1..0..0..1..0..0..1....1..1..1..0..0..1..0
..1..1..0..1..0..1..0....1..1..0..1..0..0..1....0..0..1..0..0..1..0
..1..1..0..1..0..0..1....1..0..0..1..0..0..1....1..0..1..0..0..1..0
|