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A367873型 |
| 行读取的不规则三角形:T(n,k)=长度n的排列数,同时避免图案132和321,最大非重叠上升数等于k。 |
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0
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1, 1, 1, 0, 4, 0, 4, 3, 0, 0, 11, 0, 0, 9, 7, 0, 0, 0, 22, 0, 0, 0, 16, 13, 0, 0, 0, 0, 37, 0, 0, 0, 0, 25, 21, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, 36, 31, 0, 0, 0, 0, 0, 0, 79, 0, 0, 0, 0, 0, 0, 49, 43, 0, 0, 0, 0, 0, 0, 0, 106
(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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0,5
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评论
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排列a(1)a(2)…中的上升。。。a(n)是位置i,使得a(i)<a(i+1)。
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链接
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配方奶粉
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通用公式:(1+x+x^2-2*x^2*y+x^3*y+x^4*y+3*x^4*y ^2+2*x^5*y ^2)/(1-x^2*y)^3。
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例子
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1,
1, 1,
0, 4,
0, 4, 3,
0, 0, 11,
0, 0, 9, 7,
0, 0, 0, 22,
0, 0, 0, 16, 13,
0, 0, 0, 0, 37,
0, 0, 0, 0, 25, 21,
0, 0, 0, 0, 0, 56,
0, 0, 0, 0, 0, 36, 31,
0, 0, 0, 0, 0, 0, 79,
0, 0, 0, 0, 0, 0, 49, 43,
0, 0, 0, 0, 0, 0, 0, 106
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交叉参考
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关键词
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非n,标签
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作者
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状态
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经核准的
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