观察下面一列有规律的数：12，15，110，117，126，137，150，…根据规律可知：第8个数是______，第n个数是______．
题型：不详难度：来源：
| 1 |
| 2 |
| 1 |
| 5 |
| 1 |
| 10 |
| 1 |
| 17 |
| 1 |
| 26 |
| 1 |
| 37 |
| 1 |
| 50 |
答案
| 1 |
| 2 |
| 1 |
| 12+1 |
| 1 |
| 5 |
| 1 |
| 22+1 |
| 1 |
| 10 |
| 1 |
| 32+1 |
| 1 |
| 17 |
| 1 |
| 42+1 |
根据规律可知：第8个数是：
| 1 |
| 82+1 |
| 1 |
| 65 |
第n个数是：
| 1 |
| n2+1 |
故答案为：
| 1 |
| 65 |
| 1 |
| n2+1 |
举一反三
| 1 |
| 2 |
| 1 |
| 5 |
| 1 |
| 10 |
| 1 |
| 17 |
| 1 |
| 26 |
| 1 |
| 37 |
| 1 |
| 50 |
| 1 |
| 2 |
| 1 |
| 12+1 |
| 1 |
| 5 |
| 1 |
| 22+1 |
| 1 |
| 10 |
| 1 |
| 32+1 |
| 1 |
| 17 |
| 1 |
| 42+1 |
| 1 |
| 82+1 |
| 1 |
| 65 |
| 1 |
| n2+1 |
| 1 |
| 65 |
| 1 |
| n2+1 |
