|
| |
|
| A249917型 |
| 反对偶读取的平方数组，其中第n行列出整数x，使得gcd（x，sigma（x））=n。 |
|
1
|
|
|
|
1, 2, 10, 3, 14, 15, 4, 20, 18, 12, 5, 22, 33, 44, 95, 7, 26, 45, 48, 145, 6, 8, 34, 51, 76, 200, 30, 91, 9, 38, 69, 88, 295, 42, 196, 56, 11, 46, 72, 92, 395, 54, 273, 112, 153, 13, 52, 87, 108, 445, 66, 287, 184, 288, 40, 16, 58, 99, 124, 475, 78, 455, 248, 459, 190, 473
(列表;桌子;图表;参考;听;历史;文本;内部格式)
|
|
|
|
抵消
|
1,2
|
|
|
评论
|
这是正整数的置换。
|
|
|
链接
|
|
|
|
例子
|
数组开始：
1, 2, 3, 4, 5, 7, 8, ...
10, 14, 20, 22, 26, 34, 38, ...
15, 18, 33, 45, 51, 69, 72, ...
12, 44, 48, 76, 88, 92, 108, ...
95, 145, 200, 295, 395, 445, 475, ...
6, 30, 42, 54, 66, 78, 102, ...
91, 196, 273, 287, 455, 581, 637, ...
56, 112, 184, 248, 368, 376, 432, ...
...
|
|
|
黄体脂酮素
|
（PARI）三角形（nn）={v=向量（nn
|
|
|
交叉参考
|
|
|
|
关键字
|
|
|
|
作者
|
|
|
|
状态
|
经核准的
|
| |
|
|
