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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 1 |
| 6 | 0 |
| 7 | 24 |
| 8 | 6 |
| 9 | 1 |
| 10 | 0 |
| 11 | 720 |
| 12 | 132 |
| 13 | 12 |
| 14 | 1 |
| 15 | 0 |
| 16 | 40320 |
| 17 | 6000 |
| 18 | 420 |
| 19 | 20 |
| 20 | 1 |
| 21 | 0 |
| 22 | 3628800 |
| 23 | 460320 |
| 24 | 27000 |
| 25 | 1020 |
| 26 | 30 |
| 27 | 1 |
| 28 | 0 |
| 29 | 479001600 |
| 30 | 53343360 |
| 31 | 2728320 |
| 32 | 88200 |
| 33 | 2100 |
| 34 | 42 |
| 35 | 1 |
| 36 | 0 |
| 37 | 87178291200 |
| 38 | 8693879040 |
| 39 | 397111680 |
| 40 | 11371920 |
| 41 | 235200 |
| 42 | 3864 |
| 43 | 56 |
| 44 | 1 |
[1,0,1,0,2,1,0,24,6,1,0,720,132,12,1,0,40320,6000, 420,20,1,0,3628800,460320,27000,1020,30,1,0, 479001600,53343360,2728320,88200,2100,42,1,0, 87178291200,8693879040,397111680,11371920,235200, 3864,56,1] |