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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 17 |
| 3 | 107 |
| 4 | 1087 |
| 5 | 10487 |
| 6 | 104087 |
| 7 | 1024087 |
| 8 | 10024087 |
| 9 | 100024087 |
| 10 | 1000124087 |
| 11 | 10001240087 |
| 12 | 100012400837 |
| 13 | 1000124008327 |
| 14 | 10000124008327 |
| 15 | 100001124008327 |
| 16 | 1000011224008327 |
| 17 | 10000110224008327 |
| 18 | 100001100224008327 |
| 19 | 1000010100224008327 |
| 20 | 10000101002240083271 |
| 21 | 100001010022400283271 |
| 22 | 1000010100221400283271 |
[7,17,107,1087,10487,104087,1024087,10024087, 100024087,1000124087,10001240087,100012400837, 1000124008327,10000124008327,100001124008327, 1000011224008327,10000110224008327, 100001100224008327,1000010100224008327, 10000101002240083271,100001010022400283271, 1000010100221400283271] |