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A077581号 |
| 一种三角形,其中第n行包含n个最小的数字,从1开始,互素到n。 |
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12
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1, 1, 3, 1, 2, 4, 1, 3, 5, 7, 1, 2, 3, 4, 6, 1, 5, 7, 11, 13, 17, 1, 2, 3, 4, 5, 6, 8, 1, 3, 5, 7, 9, 11, 13, 15, 1, 2, 4, 5, 7, 8, 10, 11, 13, 1, 3, 7, 9, 11, 13, 17, 19, 21, 23, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 35, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
(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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1,3
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评论
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链接
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例子
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1;
1, 3;
1, 2, 4;
1, 3, 5, 7;
1, 2, 3, 4, 6;
1, 5, 7, 11, 13, 17;
1, 2, 3, 4, 5, 6, 8;
1, 3, 5, 7, 9, ...
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数学
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row[n_]:=取[Select[Range[n^2],GCD[#,n]==1&],n];加入@@row/@Range[13]
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黄体脂酮素
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(哈斯克尔)
a077581 n k=a077581_tabl!!(n-1)!!(k-1)
a077581_当前n=a077581_启用!!(n-1)
a077581_tabl=地图(\x->取x[z|z<-[1..],gcd x z==1])[1..]
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交叉参考
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关键字
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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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