| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 0 |
| 6 | 1 |
| 7 | 6 |
| 8 | 3 |
| 9 | 0 |
| 10 | 1 |
| 11 | 12 |
| 12 | 24 |
| 13 | 4 |
| 14 | 0 |
| 15 | 1 |
| 16 | 20 |
| 17 | 90 |
| 18 | 80 |
| 19 | 5 |
| 20 | 0 |
| 21 | 1 |
| 22 | 30 |
| 23 | 240 |
| 24 | 540 |
| 25 | 240 |
| 26 | 6 |
| 27 | 0 |
| 28 | 1 |
| 29 | 42 |
| 30 | 525 |
| 31 | 2240 |
| 32 | 2835 |
| 33 | 672 |
| 34 | 7 |
| 35 | 0 |
| 36 | 1 |
| 37 | 56 |
| 38 | 1008 |
| 39 | 7000 |
| 40 | 17920 |
| 41 | 13608 |
| 42 | 1792 |
| 43 | 8 |
| 44 | 0 |
| 45 | 1 |
| 46 | 72 |
| 47 | 1764 |
| 48 | 18144 |
| 49 | 78750 |
| 50 | 129024 |
| 51 | 61236 |
| 52 | 4608 |
| 53 | 9 |
| 54 | 0 |
| 55 | 1 |
| 56 | 90 |
| 57 | 2880 |
| 58 | 41160 |
[1,1,0,1,2,0,1,6,3,0,1,12,24,4,0,1,20,90,80,5,0,1, 30,240,540,240,6,0,1,42,525,2240,2835,672,7,0,1, 56,1008,7000,17920,13608,1792,8,0,1,72,1764,18144, 78750,129024,61236,4608,9,0,1,90,2880,41160] |