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A294317号 |
| 按行读取三角形:T(n,k)=2*n-k,k<=n。 |
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4
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0, 2, 1, 4, 3, 2, 6, 5, 4, 3, 8, 7, 6, 5, 4, 10, 9, 8, 7, 6, 5, 12, 11, 10, 9, 8, 7, 6, 14, 13, 12, 11, 10, 9, 8, 7, 16, 15, 14, 13, 12, 11, 10, 9, 8, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10
(列表;桌子;图表;参考;听;历史;文本;内部格式)
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抵消
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0,2
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链接
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托马斯·西德博瑟姆,数学的A到Z:基本指南约翰·威利父子出版社,第181页,(2003)ISBN 9780471461630。
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公式
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T(n,k)=2*n-k,0<=k<=n。
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例子
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三角形开始:
0;
2, 1;
4, 3, 2;
6, 5, 4, 3;
8, 7, 6, 5, 4;
10, 9, 8, 7, 6, 5;
12, 11, 10, 9, 8, 7, 6;
14, 13, 12, 11, 10, 9, 8, 7;
16, 15, 14, 13, 12, 11, 10, 9, 8;
18, 17, 16, 15, 14, 13, 12, 11, 10, 9;
20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10;
...
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数学
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列[表[2*n-k,{n,0,10},{k,0,n}],居中]
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黄体脂酮素
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(Python)
定义f(x):
a=[]
对于范围(x)中的k:
对于范围(k+1)中的m:
a.附加(2*k-m)
返回a
打印(f(10))
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交叉参考
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T(n,n-m)=A001477号(n+m),n>=m>=0(对角线m>=O)。
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关键词
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作者
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扩展
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状态
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经核准的
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