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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 1 |
| 6 | 6 |
| 7 | 27 |
| 8 | 12 |
| 9 | 1 |
| 10 | 24 |
| 11 | 168 |
| 12 | 123 |
| 13 | 22 |
| 14 | 1 |
| 15 | 120 |
| 16 | 1200 |
| 17 | 1275 |
| 18 | 365 |
| 19 | 35 |
| 20 | 1 |
| 21 | 720 |
| 22 | 9720 |
| 23 | 13950 |
| 24 | 5655 |
| 25 | 855 |
| 26 | 51 |
| 27 | 1 |
| 28 | 5040 |
| 29 | 88200 |
| 30 | 163170 |
| 31 | 87465 |
| 32 | 18480 |
| 33 | 1722 |
| 34 | 70 |
| 35 | 1 |
| 36 | 40320 |
| 37 | 887040 |
| 38 | 2046240 |
| 39 | 1387680 |
| 40 | 383145 |
| 41 | 49476 |
| 42 | 3122 |
| 43 | 92 |
| 44 | 1 |
[1,1,1,2,5,1,6,27,12,1,24,168,123,22,1,120,1200, 1275,365,35,1,720,9720,13950,5655,855,51,1,5040, 88200,163170,87465,18480,1722,70,1,40320,887040, 2046240,1387680,383145,49476,3122,92,1] |