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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 1 |
| 3 | 90 |
| 4 | 24 |
| 5 | 1 |
| 6 | 1680 |
| 7 | 630 |
| 8 | 60 |
| 9 | 1 |
| 10 | 34650 |
| 11 | 16800 |
| 12 | 2520 |
| 13 | 120 |
| 14 | 1 |
| 15 | 756756 |
| 16 | 450450 |
| 17 | 92400 |
| 18 | 7560 |
| 19 | 210 |
| 20 | 1 |
| 21 | 17153136 |
| 22 | 12108096 |
| 23 | 3153150 |
| 24 | 369600 |
| 25 | 18900 |
| 26 | 336 |
| 27 | 1 |
| 28 | 399072960 |
| 29 | 325909584 |
| 30 | 102918816 |
| 31 | 15765750 |
| 32 | 1201200 |
| 33 | 41580 |
| 34 | 504 |
| 35 | 1 |
| 36 | 9465511770 |
| 37 | 8779605120 |
| 38 | 3259095840 |
| 39 | 617512896 |
| 40 | 63063000 |
| 41 | 3363360 |
| 42 | 83160 |
| 43 | 720 |
| 44 | 1 |
[1,6,1,90,24,1,1680,630,60,1,34650,16800,2520,120, 1,756756,450450,92400,7560,210,1,17153136, 12108096,3153150,369600,18900,336,1,399072960, 325909584,102918816,15765750,1201200,41580,504,1, 9465511770,8779605120,3259095840,617512896, 63063000,3363360,83160,720,1] |