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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 2 |
| 6 | 0 |
| 7 | 7 |
| 8 | 6 |
| 9 | 6 |
| 10 | 0 |
| 11 | 97 |
| 12 | 62 |
| 13 | 36 |
| 14 | 24 |
| 15 | 0 |
| 16 | 2251 |
| 17 | 1110 |
| 18 | 510 |
| 19 | 240 |
| 20 | 120 |
| 21 | 0 |
| 22 | 80821 |
| 23 | 30902 |
| 24 | 11340 |
| 25 | 4440 |
| 26 | 1800 |
| 27 | 720 |
| 28 | 0 |
| 29 | 4305127 |
| 30 | 1273566 |
| 31 | 369726 |
| 32 | 119280 |
| 33 | 42000 |
| 34 | 15120 |
| 35 | 5040 |
| 36 | 0 |
| 37 | 332273257 |
| 38 | 75831422 |
| 39 | 17192196 |
| 40 | 4476024 |
| 41 | 1335600 |
| 42 | 433440 |
| 43 | 141120 |
| 44 | 40320 |
[1,0,1,0,1,2,0,7,6,6,0,97,62,36,24,0,2251,1110, 510,240,120,0,80821,30902,11340,4440,1800,720,0, 4305127,1273566,369726,119280,42000,15120,5040,0, 332273257,75831422,17192196,4476024,1335600, 433440,141120,40320] |