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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 2 |
| 5 | 1 |
| 6 | 18 |
| 7 | 12 |
| 8 | 3 |
| 9 | 1 |
| 10 | 108 |
| 11 | 72 |
| 12 | 24 |
| 13 | 4 |
| 14 | 1 |
| 15 | 780 |
| 16 | 540 |
| 17 | 180 |
| 18 | 40 |
| 19 | 5 |
| 20 | 1 |
| 21 | 6600 |
| 22 | 4680 |
| 23 | 1620 |
| 24 | 360 |
| 25 | 60 |
| 26 | 6 |
| 27 | 1 |
| 28 | 63840 |
| 29 | 46200 |
| 30 | 16380 |
| 31 | 3780 |
| 32 | 630 |
| 33 | 84 |
| 34 | 7 |
| 35 | 1 |
| 36 | 693840 |
| 37 | 510720 |
| 38 | 184800 |
| 39 | 43680 |
| 40 | 7560 |
| 41 | 1008 |
| 42 | 112 |
| 43 | 8 |
| 44 | 1 |
| 45 | 8361360 |
| 46 | 6244560 |
| 47 | 2298240 |
| 48 | 554400 |
| 49 | 98280 |
| 50 | 13608 |
| 51 | 1512 |
| 52 | 144 |
| 53 | 9 |
| 54 | 1 |
[1,1,1,4,2,1,18,12,3,1,108,72,24,4,1,780,540,180, 40,5,1,6600,4680,1620,360,60,6,1,63840,46200, 16380,3780,630,84,7,1,693840,510720,184800,43680, 7560,1008,112,8,1,8361360,6244560,2298240,554400, 98280,13608,1512,144,9,1] |