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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 2 |
| 7 | 0 |
| 8 | 2 |
| 9 | 6 |
| 10 | 6 |
| 11 | 0 |
| 12 | 2 |
| 13 | 34 |
| 14 | 36 |
| 15 | 24 |
| 16 | 0 |
| 17 | 9 |
| 18 | 150 |
| 19 | 330 |
| 20 | 240 |
| 21 | 120 |
| 22 | 0 |
| 23 | -6 |
| 24 | 938 |
| 25 | 2790 |
| 26 | 3120 |
| 27 | 1800 |
| 28 | 720 |
| 29 | 0 |
| 30 | 118 |
| 31 | 5509 |
| 32 | 28014 |
| 33 | 38220 |
| 34 | 31080 |
| 35 | 15120 |
| 36 | 5040 |
| 37 | 0 |
| 38 | -568 |
| 39 | 40584 |
| 40 | 294504 |
| 41 | 535416 |
| 42 | 504000 |
| 43 | 332640 |
| 44 | 141120 |
| 45 | 40320 |
| 46 | 0 |
| 47 | 4716 |
| 48 | 297648 |
| 49 | 3459324 |
| 50 | 7877520 |
| 51 | 8968680 |
| 52 | 6804000 |
| 53 | 3840480 |
| 54 | 1451520 |
| 55 | 362880 |
[1,0,1,0,1,2,0,2,6,6,0,2,34,36,24,0,9,150,330,240, 120,0,-6,938,2790,3120,1800,720,0,118,5509,28014, 38220,31080,15120,5040,0,-568,40584,294504,535416, 504000,332640,141120,40320,0,4716,297648,3459324, 7877520,8968680,6804000,3840480,1451520,362880] |