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A197445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域的数量,x=0,1,2,3,4,等于2,1,0,0 |
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1
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3, 12, 81, 474, 2678, 15410, 88767, 510482, 2936714, 16895217, 97197637, 559175541, 3216923150, 18506887013, 106469709385, 612517802024, 3523801014059, 20272347435052, 116626354899557, 670948774602366, 3859953085161367
(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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每个0紧挨着0 2,每个1紧挨着1 1,每个2紧挨着2 1,每个3紧挨着3 0,每个4紧挨着4 0
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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)+12*a(n-2)+45*a(n-3)+61*a(ns-4)+20*a(ng-5)-129*a(n-6)-324*a(nn-7)-344*a(-n-8)-166*a(nm-9)+61*1(n-10)+268*a当n>25时,a(n-18)-92*a(n-19)-32*a
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例子
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n=4的一些解
..1..1..0....1..0..0....0..1..1....0..3..0....0..1..1....0..1..1....1..1..0
..0..0..0....1..3..0....3..0..0....0..0..0....0..3..0....0..0..0....0..0..0
..0..3..1....0..0..1....0..0..0....0..0..3....0..0..0....3..0..1....0..0..0
..0..0..1....0..0..1....0..1..1....0..0..0....0..0..0....0..0..1....0..3..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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