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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 37 |
| 3 | 237 |
| 4 | 1789 |
| 5 | 4357 |
| 6 | 14379 |
| 7 | 19587 |
| 8 | 93957 |
| 9 | 189572 |
| 10 | 189572 |
| 11 | 189597 |
| 12 | 189597 |
| 13 | 189597 |
| 14 | 1234397 |
| 15 | 1839597 |
| 16 | 1958798 |
| 17 | 1983957 |
| 18 | 1983957 |
| 19 | 1983957 |
| 20 | 1983957 |
| 21 | 1983957 |
| 22 | 1983957 |
| 23 | 3978594 |
| 24 | 11983957 |
| 25 | 19596487 |
| 26 | 29195397 |
| 27 | 29195397 |
| 28 | 29195397 |
[7,37,237,1789,4357,14379,19587,93957,189572, 189572,189597,189597,189597,1234397,1839597, 1958798,1983957,1983957,1983957,1983957,1983957, 1983957,3978594,11983957,19596487,29195397, 29195397,29195397] |