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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 14 |
| 3 | 109 |
| 4 | 730 |
| 5 | 4918 |
| 6 | 32043 |
| 7 | 204417 |
| 8 | 1277866 |
| 9 | 7860506 |
| 10 | 47678819 |
[3,14,109,730,4918,32043,204417,1277866,7860506, 47678819] |