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A196969号 |
| nX3 0..4数组的数量,其中每个元素x等于其水平和垂直邻接数4,3,0,2,1,其中x=0,1,2,3,4 |
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1
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2, 10, 34, 104, 386, 1380, 4800, 16794, 58875, 206084, 721260, 2525126, 8840855, 30952194, 108366098, 379400544, 1328316102, 4650549495, 16281977271, 57004611828, 199578061611, 698740003512, 2446349057586, 8564879222176
(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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1,1
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评论
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每个0紧邻0 4,每个1紧邻1 3,每个2紧邻2 0,每个3紧邻3 2,每个4紧邻4 1
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链接
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配方奶粉
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经验:a(n)=2*a(n-1)+5*a(n-2)+2*a(n3)-2*a(-n4)-11*a(v-5)+a(n-6)+36*a(7-7)+50*a(8-8)+20*a
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例子
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n=4的一些解
..0...2...0...0...0...2...0...0...0...0...2...0...0...2...0...2...0...0...0...0...0...0...0...2
..2..3..2....2..3..2....0..2..2....0..0..0....2..2..0....0..2..2....2..2..0
..0..0..0....0..2..0....2..3..0....2..2..0....0..3..2....0..0..0....0..2..0
..0..0..0....0..2..0....0..2..0....0..2..0....0..2..0....0..0..2....0..2..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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已批准
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