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A252644型 |
| 每3X3子块行和对角线和等于0 3 4 6或7,每一3X3列和反对角线之和不等于0 3 6或7的(4+2)X(n+2)0..3数组的数目 |
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1
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2230, 10259, 39492, 95904, 448323, 1848350, 4416767, 21690676, 92632549, 215263202, 1102681029, 4817209197, 10969594133, 57815579003, 256126895043, 575854261780, 3089052609134, 13798462237870, 30788679240521
(列表;图表;参考文献;听;历史;文本;内部格式)
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抵消
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1,1
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评论
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链接
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公式
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经验:a(n)=150*a(n-3)-8737*a(n-6)+259868*a(n9)-4430048*a-75929658840*a(n-42)+37409311284*a(n-45)-12501763424*a(n-48)+2743088704*a对于n>62,-371898368*a(n-54)+27607040*a(n-57)-819200*a(-n60)
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例子
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n=4的一些解
..2..1..1..2..1..1....1..1..2..1..1..2....2..3..2..2..3..2....2..2..0..2..2..0
..0..1..3..3..1..0....1..3..3..1..0..3....3..0..1..3..0..1....1..0..3..1..3..3
..0..3..1..0..3..1....3..1..0..3..1..3....0..2..2..3..2..2....2..0..2..2..3..2
..2..1..1..2..1..1....1..1..2..1..1..2....2..3..2..2..0..2....2..2..3..2..2..3
..3..1..3..0..1..3....1..0..3..1..3..3....0..3..1..0..3..1....1..0..3..1..3..3
..0..3..1..3..3..1....3..1..3..0..1..3....3..2..2..3..2..2....2..3..2..2..0..2
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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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