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| n | a(n) |
|---|---|
| 7 | 0 |
| 8 | 5 |
| 9 | 38 |
| 10 | 250 |
| 11 | 1246 |
| 12 | 6043 |
| 13 | 27260 |
| 14 | 120389 |
| 15 | 517897 |
| 16 | 2198806 |
| 17 | 9219045 |
[0,5,38,250,1246,6043,27260,120389,517897,2198806, 9219045] |