搜索: 编号:a226847
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226847英镑
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| 某些(n+1)X4二进制数组的2X2子块的永久数的nX3(0,1,2)数组的数目 |
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23, 417, 4722, 49481, 541932, 6076168, 67929575, 756046291, 8410591772, 93621762980, 1042359550109, 11604658170466, 129189416900910, 1438207535407221, 16011038102586917, 178245305692614279
(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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配方奶粉
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经验公式:a(n)=17*a(n-1)-92*a(-n2)+359*a(n-3)-624*a(n4)-959*a*a(n-16)+3279904*a+740322*a(n-23)+3347439*a*a(n-37)+10044100*a(n-38)+13119590*a+2025246*a(n-43)+824620*a(n-44)+3582164*a(n-45)-307136*a(n-46)+663570*a(n-47)+619240*a(n-48)-168452*a(n-49)-17568*a(n-50)+2048*a(n-51)
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例子
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n=3的一些解
..1..2..2....1..2..2....0..2..1....0..1..1....1..1..1....0..0..0....1..1..1
..2..2..1....1..2..1....0..2..1....0..0..0....2..2..0....2..1..0....1..1..1
..2..1..1....0..0..0....1..2..0....0..0..1....2..1..0....0..0..0....0..0..2
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