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A326025型 |
| 不包含不同元素的和或乘积的{1..n}的最大子集的数目。 |
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4
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1, 1, 2, 2, 2, 4, 5, 10, 13, 20, 28, 40, 54, 82, 120, 172, 244, 347, 471, 651, 874, 1198, 1635, 2210, 2867, 3895, 5234, 6889, 9019, 11919, 15629, 20460, 26254, 33827, 43881, 56367, 71841, 91834, 117695, 148503, 188039, 311442, 390859, 488327, 610685, 759665
(列表;图表;参考;听;历史;文本;内部格式)
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偏移
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0,3
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链接
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例子
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a(1)=1到a(8)=13最大子集:
{1} {1} {1} {1} {1} {1} {1} {1}
{2} {2,3} {2,3,4} {2,3,4} {2,3,4} {2,3,4} {2,3,4}
{2,4,5} {2,4,5} {2,3,7} {2,4,5}
{3,4,5} {2,5,6} {2,4,5} {2,4,7}
{3,4,5,6} {2,4,7} {2,5,6}
{2,5,6} {2,5,8}
{2,6,7} {2,6,7}
{3,4,5,6} {2,3,7,8}
{3,5,6,7} {3,4,5,6}
{4,5,6,7} {3,4,6,8}
{3,5,6,7}
{3,6,7,8}
{4,5,6,7,8}
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数学
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fasmax[y_]:=互补[y,并集@@(多数[Subsets[#]]和/@y)];
表[Length[fasmax[Select[Subsets[Range[n]],Intersection[#,Union[Plus@@@Subsets[#,{2,n}],Times@@@Subset[#,},n}]]=={}&]],{n,0,10}]
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黄体脂酮素
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(PARI)\\请参阅程序文件的链接。
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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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扩展
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a(41)-a(45)来自王金源2020年10月3日
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状态
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经核准的
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