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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 3 |
| 6 | 0 |
| 7 | 4 |
| 8 | 18 |
| 9 | 15 |
| 10 | 0 |
| 11 | 8 |
| 12 | 84 |
| 13 | 180 |
| 14 | 105 |
| 15 | 0 |
| 16 | 16 |
| 17 | 360 |
| 18 | 1500 |
| 19 | 2100 |
| 20 | 945 |
| 21 | 0 |
| 22 | 32 |
| 23 | 1488 |
| 24 | 10800 |
| 25 | 27300 |
| 26 | 28350 |
| 27 | 10395 |
| 28 | 0 |
| 29 | 64 |
| 30 | 6048 |
| 31 | 72240 |
| 32 | 294000 |
| 33 | 529200 |
| 34 | 436590 |
| 35 | 135135 |
| 36 | 0 |
| 37 | 128 |
| 38 | 24384 |
| 39 | 463680 |
| 40 | 2857680 |
| 41 | 7938000 |
| 42 | 11060280 |
| 43 | 7567560 |
| 44 | 2027025 |
[1,0,1,0,2,3,0,4,18,15,0,8,84,180,105,0,16,360, 1500,2100,945,0,32,1488,10800,27300,28350,10395,0, 64,6048,72240,294000,529200,436590,135135,0,128, 24384,463680,2857680,7938000,11060280,7567560, 2027025] |