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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 131 |
| 3 | 10301 |
| 4 | 1003001 |
| 5 | 100030001 |
| 6 | 10070307001 |
| 7 | 1000703070001 |
| 8 | 100075030570001 |
| 9 | 10006750305760001 |
| 10 | 1000167503057610001 |
| 11 | 100015675030576510001 |
| 12 | 10001056750305765010001 |
| 13 | 1000105367503057635010001 |
| 14 | 100001053675030576350100001 |
| 15 | 10000105360750305706350100001 |
[3,131,10301,1003001,100030001,10070307001, 1000703070001,100075030570001,10006750305760001, 1000167503057610001,100015675030576510001, 10001056750305765010001,1000105367503057635010001, 100001053675030576350100001, 10000105360750305706350100001] |