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| n | a(n) |
|---|---|
| 0 | 11 |
| 1 | 0 |
| 2 | 2 |
| 3 | 27 |
| 4 | 92 |
| 5 | 352 |
| 6 | 1002 |
| 7 | 16927 |
| 8 | 2302 |
| 9 | 7827 |
| 10 | 25052 |
| 11 | 220052 |
| 12 | 13352 |
| 13 | 1487552 |
| 14 | 101752 |
| 15 | 195677 |
| 16 | 85177 |
| 17 | 137532552 |
| 18 | 173577 |
[11,0,2,27,92,352,1002,16927,2302,7827,25052, 220052,13352,1487552,101752,195677,85177, 137532552,173577] |