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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 12 |
| 3 | 85 |
| 4 | 809 |
| 5 | 9424 |
| 6 | 126492 |
| 7 | 1860338 |
| 8 | 29040689 |
| 9 | 471748746 |
| 10 | 7884000856 |
| 11 | 134620324619 |
| 12 | 2338231754929 |
| 13 | 41187966488148 |
| 14 | 734195892785936 |
[2,12,85,809,9424,126492,1860338,29040689, 471748746,7884000856,134620324619,2338231754929, 41187966488148,734195892785936] |