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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 4 |
| 6 | 6 |
| 7 | 6 |
| 8 | 168 |
| 9 | 48 |
| 10 | 20 |
| 11 | 10 |
| 12 | 24 |
| 13 | 12 |
| 14 | 42 |
| 15 | 8 |
| 16 | 20160 |
| 17 | 16 |
| 18 | 432 |
| 19 | 18 |
| 20 | 40 |
| 21 | 42 |
| 22 | 110 |
| 23 | 22 |
| 24 | 336 |
| 25 | 480 |
| 26 | 156 |
| 27 | 11232 |
| 28 | 84 |
| 29 | 28 |
| 30 | 120 |
| 31 | 30 |
| 32 | 9999360 |
| 33 | 20 |
| 34 | 272 |
| 35 | 24 |
| 36 | 864 |
| 37 | 36 |
| 38 | 342 |
| 39 | 156 |
| 40 | 672 |
| 41 | 40 |
| 42 | 252 |
| 43 | 42 |
| 44 | 220 |
| 45 | 192 |
| 46 | 506 |
| 47 | 46 |
| 48 | 40320 |
| 49 | 2016 |
| 50 | 12000 |
| 51 | 32 |
| 52 | 312 |
| 53 | 52 |
| 54 | 303264 |
| 55 | 110 |
| 56 | 1008 |
[1,1,2,6,4,6,6,168,48,20,10,24,12,42,8,20160,16, 432,18,40,42,110,22,336,480,156,11232,84,28,120, 30,9999360,20,272,24,864,36,342,156,672,40,252,42, 220,192,506,46,40320,2016,12000,32,312,52,303264, 110,1008] |