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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 1 |
| 10 | 1 |
| 11 | 6 |
| 12 | 94 |
| 13 | 10786 |
| 14 | 3459386 |
| 15 | 1470293676 |
| 16 | 733351105935 |
| 17 | 423187422492342 |
| 18 | 281341168330848874 |
| 19 | 214755319657939505396 |
| 20 | 187549729101764460261505 |
| 21 | 186685399408147545744203915 |
| 22 | 210977245260028917322933165888 |
[1,0,0,0,0,0,0,0,0,1,1,6,94,10786,3459386, 1470293676,733351105935,423187422492342, 281341168330848874,214755319657939505396, 187549729101764460261505, 186685399408147545744203915, 210977245260028917322933165888] |