题目内容
按h,
,
,
,…这一列数1的规律,第n个数是______.
| h |
| 4 |
| h |
| 9 |
| h |
| h6 |
1=
,
=
,
=
,
=
,…,所以第nk数是
.
故答案为:
.
| 1 |
| 19 |
| 1 |
| 4 |
| 1 |
| 99 |
| 1 |
| 9 |
| 1 |
| 39 |
| 1 |
| 16 |
| 1 |
| 49 |
| 1 |
| n9 |
故答案为:
| 1 |
| n9 |
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题目内容
| h |
| 4 |
| h |
| 9 |
| h |
| h6 |
| 1 |
| 19 |
| 1 |
| 4 |
| 1 |
| 99 |
| 1 |
| 9 |
| 1 |
| 39 |
| 1 |
| 16 |
| 1 |
| 49 |
| 1 |
| n9 |
| 1 |
| n9 |