题目列表(包括答案和解析)
| 层数 | 1 | 2 | 3 | … | n |
| 每层圆圈个数 | … |
| n(n+3) |
| 2 |
| n(n+3) |
| 2 |
| n(n+1) | 2 |
| 1 |
| 2 |
| 1 |
| 22 |
| 1 |
| 23 |
| 1 |
| 24 |
| 1 |
| 2n |
| 1 |
| 2 |
| 1 |
| 22 |
| 1 |
| 23 |
| 1 |
| 24 |
| 1 |
| 2n |
| 1 |
| 2 |
| 1 |
| 22 |
| 1 |
| 23 |
| 1 |
| 24 |
| 1 |
| 2n |
| 1 |
| 2 |
| 1 |
| 22 |
| 1 |
| 23 |
| 1 |
| 24 |
| 1 |
| 25 |
| 1 |
| 2n |
| 1 |
| 2 |
| 1 |
| 22 |
| 1 |
| 23 |
| 1 |
| 24 |
| 1 |
| 25 |
| 1 |
| 2n |
| 5 |
| 6 |
| 11 |
| 12 |
| 23 |
| 24 |
| 47 |
| 48 |
| 95 |
| 96 |
| 191 |
| 192 |
| n(n+1) | 2 |
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