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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 0 |
| 6 | 1 |
| 7 | 6 |
| 8 | 6 |
| 9 | 2 |
| 10 | 1 |
| 11 | 24 |
| 12 | 132 |
| 13 | 176 |
| 14 | 24 |
| 15 | 1 |
| 16 | 60 |
| 17 | 960 |
| 18 | 4580 |
| 19 | 5040 |
| 20 | 552 |
| 21 | 1 |
| 22 | 120 |
| 23 | 4260 |
| 24 | 52960 |
| 25 | 213000 |
| 26 | 206592 |
| 27 | 21280 |
| 28 | 1 |
| 29 | 210 |
| 30 | 14070 |
| 31 | 368830 |
| 32 | 3762360 |
| 33 | 13109712 |
| 34 | 11404960 |
| 35 | 1073160 |
[1,1,0,1,2,0,1,6,6,2,1,24,132,176,24,1,60,960, 4580,5040,552,1,120,4260,52960,213000,206592, 21280,1,210,14070,368830,3762360,13109712, 11404960,1073160] |