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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 12 |
| 6 | 4 |
| 7 | 15 |
| 8 | 90 |
| 9 | 60 |
| 10 | 8 |
| 11 | 105 |
| 12 | 840 |
| 13 | 840 |
| 14 | 224 |
| 15 | 16 |
| 16 | 945 |
| 17 | 9450 |
| 18 | 12600 |
| 19 | 5040 |
| 20 | 720 |
| 21 | 32 |
| 22 | 10395 |
| 23 | 124740 |
| 24 | 207900 |
| 25 | 110880 |
| 26 | 23760 |
| 27 | 2112 |
| 28 | 64 |
| 29 | 135135 |
| 30 | 1891890 |
| 31 | 3783780 |
| 32 | 2522520 |
| 33 | 720720 |
| 34 | 96096 |
| 35 | 5824 |
| 36 | 128 |
| 37 | 2027025 |
| 38 | 32432400 |
[1,1,2,3,12,4,15,90,60,8,105,840,840,224,16,945, 9450,12600,5040,720,32,10395,124740,207900,110880, 23760,2112,64,135135,1891890,3783780,2522520, 720720,96096,5824,128,2027025,32432400] |