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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 6 |
| 5 | 0 |
| 6 | 1 |
| 7 | 12 |
| 8 | 24 |
| 9 | 0 |
| 10 | 1 |
| 11 | -20 |
| 12 | 60 |
| 13 | 60 |
| 14 | 0 |
| 15 | 1 |
| 16 | 540 |
| 17 | 240 |
| 18 | 180 |
| 19 | 120 |
| 20 | 0 |
| 21 | 1 |
| 22 | -882 |
| 23 | 6300 |
| 24 | 2100 |
| 25 | 420 |
| 26 | 210 |
| 27 | 0 |
| 28 | 1 |
| 29 | -6720 |
| 30 | -8736 |
| 31 | 35280 |
| 32 | 8960 |
| 33 | 840 |
| 34 | 336 |
| 35 | 0 |
| 36 | 1 |
| 37 | 189936 |
| 38 | 181440 |
| 39 | 13608 |
| 40 | 136080 |
| 41 | 27720 |
| 42 | 1512 |
| 43 | 504 |
| 44 | 0 |
| 45 | 1 |
[1,0,1,6,0,1,12,24,0,1,-20,60,60,0,1,540,240,180, 120,0,1,-882,6300,2100,420,210,0,1,-6720,-8736, 35280,8960,840,336,0,1,189936,181440,13608,136080, 27720,1512,504,0,1] |