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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 124 |
| 3 | 1188 |
| 4 | 12356 |
| 5 | 129492 |
| 6 | 1361746 |
| 7 | 14331126 |
| 8 | 150856188 |
| 9 | 1588078260 |
| 10 | 16718137334 |
| 11 | 175997231290 |
| 12 | 1852781990558 |
| 13 | 19504865161846 |
| 14 | 205334357806520 |
| 15 | 2161624764528348 |
| 16 | 22756160755947020 |
| 17 | 239561861905201388 |
[1,12,124,1188,12356,129492,1361746,14331126, 150856188,1588078260,16718137334,175997231290, 1852781990558,19504865161846,205334357806520, 2161624764528348,22756160755947020, 239561861905201388] |