搜索: 编号:a278802
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A278802型
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| 行按非递减字典顺序排列,列按非递增字典顺序排列的nX3 0..2数组的数量。 |
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+0 1
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10, 63, 322, 1439, 5767, 20972, 69834, 214774, 615120, 1653047, 4196501, 10123619, 23327383, 51572441, 109818385, 225997932, 450803519, 873872396, 1649976645, 3040564120, 5478446820, 9666837555, 16728604905, 28427944695, 47495149011
(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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链接
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配方奶粉
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经验:a(n)=(1/2092278988000)*n^16+(1/201180672000)*n*15+(257/104613949400)*n=14+(1/130636800)*n13+(19241/114960384000)*n12+(3523/1306368000)*n ^11+(241517/7315660800)*n#10+(284771/914457600)*n*n^9+(336468511/146313216000)*n8+(35482669/261273600)*n^7+(376442771/5748019200)*n^6+(46737917/179625600)*n^5+(361669107043/435891456000)*n^4+(250175041/127008000)*n*3+(375648041/121080960)*n=2+(13891/5040)*n+1
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例子
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n=4的一些解
..1..1..0. .1..1..0. .1..0..0. .0..0..0. .1..1..0. .2..1..0. .1..0..0
..2..0..2. .2.1.1.1。1..2..0. .0..0..0. .1..1..0. .2..1..0. .1..1..1
..2..2..0. .2..1..2. .1..2..1. .0..0..0. .1..1..1. .2..1..0. .1..1..1
..2..2..0. .2..1..2. .2..2..2. .1..0..0. .2..1..0. .2..2..1. .2..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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经核准的
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