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| n | a(n) |
|---|---|
| 2 | 19 |
| 3 | 63 |
| 4 | 2816 |
| 5 | 1245 |
| 6 | 143 |
| 7 | 70668 |
| 8 | 74283746 |
| 9 | 622677 |
| 10 | 34716123 |
| 11 | 4522574 |
| 12 | 82212839 |
| 13 | 1010388604 |
| 14 | 34860663827 |
| 15 | 2227981245 |
[19,63,2816,1245,143,70668,74283746,622677, 34716123,4522574,82212839,1010388604,34860663827, 2227981245] |