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| A326179型 |
| 包含n的{1..n}的子集数，其乘积可被其和整除。 |
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5
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0, 1, 1, 2, 1, 5, 9, 15, 30, 65, 138, 274, 563, 1149, 2441, 5110, 9090, 19645, 37524, 79178, 156697, 324182, 663749, 1353984, 2529510, 5088926, 10686159, 19987129, 40800192, 85303150, 162549135, 341440697, 630392773, 1317158898, 2687152135, 5276362642, 10078384386, 21415439670, 43367751196, 86613992774, 166456115593
(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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0,4
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链接
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例子
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a（1）=1到a（7）=15个子集：
{1} {2} {3} {4} {5} {6} {7}
{1,2,3} {1,4,5} {3,6} {1,6,7}
{2,3,5} {2,4,6} {2,5,7}
{3,4,5} {4,5,6} {3,4,7}
{1,2,3,4,5} {1,2,3,6} {3,5,7}
{1,3,5,6} {1,2,4,7}
{3,4,5,6} {2,3,6,7}
{1,2,3,4,6} {2,5,6,7}
{2,3,4,5,6} {3,5,6,7}
{1,2,5,6,7}
{1,3,4,5,7}
{1,3,4,6,7}
{2,3,4,5,7}
{2,4,5,6,7}
{1,2,3,4,5,6,7}
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数学
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表[Length[Select[Subsets[Range[n]，{1，n}]，MemberQ[#，n]&&Divisible[Times@@#，Plus@@#]&]]，{n，0，10}]
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交叉参考
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囊性纤维变性。A053632号,A057567号,A057568号,A059529号,A063865号,A301987型,A326153型/A326154型,A326156型,A326158型,A326178型,A326180型.
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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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状态
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经核准的
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