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| A196780号 |
| n X n 0..4个数组的数量，每个元素X等于其水平和垂直邻域的数量，等于2,4,3,0,1，其中X=0,1,2,3,4 |
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0
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1, 1, 17, 145, 6137, 404589, 65282256, 22331701461, 16774271567427, 27461523421500033, 98038364298327333400
(列表；图表；参考；听；历史；文本；内部格式)
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抵消
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1,3
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评论
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每个0紧挨着0 2，每个1紧挨着1 4，每个2紧挨着2 3，每个3紧挨着3 0，每个4紧挨着4 1
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链接
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例子
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n=4的一些解
..0..3..0...0...0..3..0...0...0...0...0...0...0...3...0...0...0...0...0...3...0...0...0...3...0
..3..0..1..0....0..0..0..0....0..3..3..0....3..0..0..0....3..0..0..0
..0..1..4..1....3..0..0..3....3..0..0..0....0..0..0..0....0..3..3..0
..0..0..1..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
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交叉参考
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关键词
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非n
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作者
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状态
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经核准的
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