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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 1 |
| 12 | 10 |
| 13 | 54 |
| 14 | 217 |
| 15 | 736 |
| 16 | 2238 |
| 17 | 6311 |
| 18 | 16858 |
| 19 | 43262 |
| 20 | 107693 |
| 21 | 261823 |
| 22 | 624756 |
| 23 | 1468489 |
| 24 | 3409246 |
| 25 | 7833514 |
| 26 | 17841580 |
| 27 | 40327947 |
| 28 | 90547126 |
| 29 | 202096457 |
| 30 | 448654889 |
| 31 | 991165733 |
| 32 | 2179884354 |
| 33 | 4774433308 |
| 34 | 10416862098 |
[0,0,0,0,0,0,0,0,0,0,0,1,10,54,217,736,2238,6311, 16858,43262,107693,261823,624756,1468489,3409246, 7833514,17841580,40327947,90547126,202096457, 448654889,991165733,2179884354,4774433308, 10416862098] |