搜索： 编号：a254806
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A254806型
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| 每个3X3子块对角线和减去反对角线中位数的（3+2）X（n+2）0..1数组的数量在水平、垂直和ne-to-sw反对角化上均不减少 |
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12680, 46026, 133628, 362924, 1133390, 3598070, 11836406, 37936764, 125487216, 402542545, 1314613212, 4204596324, 13623221472, 43708937976, 141416903594, 455887528023, 1476834502912, 4779457689557, 15509056463304, 50322669190606
(列表；图表；参考；听；历史；文本；内部格式)
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1,1
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链接
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例子
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n=3的一些解
..0..1..1..1..0....0..1..1..0..1....0..0..0..0..1....0..0..0..1..1
..0..1..1..1..1...0...0..1..0..1..0...0...0..1..1..1..1...1..1..1..1
..0..1..1..0..0....1..1..1..0..1....1..1..0..0..0....1..1..1..1..1
..1..0..1..0..1....1..1..1..1..1....1..1..0..1..0....0..1..0..0..0
..0..1..1..1..1....1..1..0..0..1....0..0..0..1..1....1..0..0..0..1
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非n
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经核准的
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