|
| |
|
| A326178型 |
| {1..n}的子集数，其乘积等于其和。 |
|
6
|
|
|
|
0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67
(列表;图表;参考文献;听;历史;文本;内部格式)
|
|
|
|
抵消
|
0,3
|
|
|
评论
|
|
|
|
链接
|
|
|
|
例子
|
a（1）=1到a（9）=10子集：
{1} {1} {1} {1} {1} {1} {1} {1} {1}
{2} {2} {2} {2} {2} {2} {2} {2}
{3} {3} {3} {3} {3} {3} {3}
{1,2,3} {4} {4} {4} {4} {4} {4}
{1,2,3} {5} {5} {5} {5} {5}
{1,2,3} {6} {6} {6} {6}
{1,2,3} {7} {7} {7}
{1,2,3} {8} {8}
{1,2,3} {9}
｛1，2，3｝
|
|
|
数学
|
表[Length[Select[Subsets[Range[n]]，Times@@#=Plus@@#&]]，｛n，0，10｝]
|
|
|
交叉参考
|
|
|
|
关键字
|
非n,哑的
|
|
|
作者
|
|
|
|
状态
|
经核准的
|
| |
|
|
