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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 3 |
| 5 | 14 |
| 6 | 21 |
| 7 | 84 |
| 8 | 21 |
| 9 | 12 |
| 10 | 1008 |
| 11 | 126 |
| 12 | 21 |
| 13 | 315 |
| 14 | 5040 |
| 15 | 126 |
| 16 | 126 |
| 17 | 2016 |
| 18 | 1008 |
| 19 | 126 |
| 20 | 672 |
| 21 | 60 |
| 22 | 99792 |
| 23 | 4989600 |
| 24 | 1155 |
| 25 | 3780 |
| 26 | 9072 |
| 27 | 66 |
| 28 | 30240 |
| 29 | 3360 |
| 30 | 4536 |
| 31 | 554400 |
| 32 | 453600 |
| 33 | 60 |
| 34 | 45360 |
| 35 | 60 |
| 36 | 277200 |
| 37 | 498960 |
| 38 | 66 |
| 39 | 5184 |
| 40 | 9072 |
| 41 | 45360 |
| 42 | 189 |
| 43 | 13860 |
| 44 | 554400 |
| 45 | 4620 |
| 46 | 50400 |
| 47 | 1260 |
| 48 | 3465 |
| 49 | 73920 |
| 50 | 712800 |
| 51 | 554400 |
| 52 | 3465 |
| 53 | 12960 |
| 54 | 12600 |
| 55 | 453600 |
| 56 | 360 |
[1,1,3,3,14,21,84,21,12,1008,126,21,315,5040,126, 126,2016,1008,126,672,60,99792,4989600,1155,3780, 9072,66,30240,3360,4536,554400,453600,60,45360,60, 277200,498960,66,5184,9072,45360,189,13860,554400, 4620,50400,1260,3465,73920,712800,554400,3465, 12960,12600,453600,360] |