a(3)=9,因为1/3+1/6=1/2而3+6=9。
包含整数n、y、z、n+y、c和d的表格,对于n>=2:
+-----+------+-----+-------------+-----+-----+
|n|y|z|a(n)=n+y|c|d|
+-----+------+-----+-------------+-----+-----+
|2|2|1|4|1|1|
| 3 | 6 | 2 | 9 | 1 | 2 |
| 4 | 12 | 3 | 16 | 1 | 3 |
| 5 | 20 | 4 | 25 | 1 | 4 |
| 6 | 3 | 2 | 9 | 2 | 1 |
| 7 | 42 | 6 | 49 | 1 | 6 |
| 8 | 56 | 7 | 64 | 1 | 7 |
| 9 | 72 | 8 | 81 | 1 | 8 |
| 10 | 15 | 6 | 25 | 2 | 3 |
| 11 | 110 | 10 | 121 | 1 | 10 |
| 12 | 4 | 3 | 16 | 3 | 1 |
| 13 | 156 | 12 | 169 | 1 | 12 |
| 14 | 35 | 10 | 49 | 2 | 5 |
| 15 | 10 | 6 | 25 | 3 | 2 |
| 16 | 240 | 15 | 256 | 1 | 15 |
| 17 | 272 | 16 | 289 | 1 | 16 |
| 18 | 63 | 14 | 81 | 2 | 7 |
| 19 | 342 | 18 | 361 | 1 | 18 |
| 20 | 5 | 4 | 25 | 4 | 1 |
|