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A207042型
每2 X 3或3 X 2子块正好有一条顺时针边的(n+1)X(n+1)0..2数组的数量增加。
1
81, 270, 750, 2244, 4944, 11712, 35904, 79104, 187392, 574464, 1265664, 2998272, 9191424, 20250624, 47972352, 147062784, 324009984, 767557632, 2353004544, 5184159744, 12280922112, 37648072704, 82946555904, 196494753792
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1,1
评论
的对角线A207050型.
链接
例子
n=4的一些解
..2..0..0..1..1....2..2..0..0..0....0..0..1..1..0....1..2..2..2..1
..2..0..0..0..1....2..2..2..0..0....0..1..1..1..2....2..2..2..0..0
..2..2..0..0..0....1..2..2..2..0....1..1..1..2..2....2..2..0..0..0
..2..2..2..0..0....1..1..2..2..2....1..1..2..2..2....2..0..0..0..2
..0..2..2..2..0....1..1..1..2..2....1..2..2..2..1....2..0..0..2..2
交叉参考
关键词
非n
作者
R.H.哈丁2012年2月14日
状态
经核准的