表格开始
...1.....2........4..........7...........12..............21................37
...2....11.......39........136..........494............1785..............6432
...4....39......228.......1441.........9194...........58251............370000
...7...136.....1441......16524.......194743.........2271055..........26487173
..12...494.....9194.....194743......4254377........91004329........1952733110
..21..1785....58251....2271055.....91004329......3553672817......139547279602
..37..6432...370000...26487173...1952733110....139547279602....10046940260800
..65.23201..2348956..309059200..41935988643...5483284264255...723805695940277
.114.83695.14911425.3606151826.900218672974.215325152512080.52099265384617231
...
n=4,k=4的一些解
..0..0..1..0. .0..1..1..0. .0..1..1..0. .0..0..0..1. .0..1..0..0
..0..1..0..0. .0..1..0..0. .1..0..0..1. .0..0..1..1. .1..0..0..0
..1..0..1..1. .0..1..0..1. .0..1..0..1. .1..1..0..0. .1..1..1..0
..1..1..0..1. .0..0..1..0. .0..1..0..1. .0..0..0..0. .0..1..1..1