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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 32 |
| 3 | 325 |
| 4 | 7325 |
| 5 | 732511 |
| 6 | 13732511 |
| 7 | 1373251117 |
| 8 | 191373251117 |
| 9 | 19137325111723 |
| 10 | 2919137325111723 |
| 11 | 291913732511172331 |
| 12 | 37291913732511172331 |
| 13 | 3729191373251117233141 |
| 14 | 433729191373251117233141 |
| 15 | 43372919137325111723314147 |
[2,32,325,7325,732511,13732511,1373251117, 191373251117,19137325111723,2919137325111723, 291913732511172331,37291913732511172331, 3729191373251117233141,433729191373251117233141, 43372919137325111723314147] |