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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 3 |
| 6 | 0 |
| 7 | 8 |
| 8 | 2 |
| 9 | 0 |
| 10 | 20 |
| 11 | 15 |
| 12 | 0 |
| 13 | 48 |
| 14 | 75 |
| 15 | 5 |
| 16 | 0 |
| 17 | 112 |
| 18 | 308 |
| 19 | 63 |
| 20 | 0 |
| 21 | 256 |
| 22 | 1120 |
| 23 | 476 |
| 24 | 14 |
| 25 | 0 |
| 26 | 576 |
| 27 | 3744 |
| 28 | 2772 |
| 29 | 252 |
| 30 | 0 |
| 31 | 1280 |
| 32 | 11760 |
| 33 | 13680 |
| 34 | 2580 |
| 35 | 42 |
| 36 | 0 |
| 37 | 2816 |
| 38 | 35200 |
| 39 | 60060 |
| 40 | 19635 |
| 41 | 990 |
| 42 | 0 |
| 43 | 6144 |
| 44 | 101376 |
| 45 | 241472 |
| 46 | 123255 |
| 47 | 12870 |
| 48 | 132 |
| 49 | 0 |
| 50 | 13312 |
| 51 | 282880 |
| 52 | 906048 |
| 53 | 673816 |
| 54 | 121550 |
| 55 | 3861 |
[1,0,0,1,0,3,0,8,2,0,20,15,0,48,75,5,0,112,308,63, 0,256,1120,476,14,0,576,3744,2772,252,0,1280, 11760,13680,2580,42,0,2816,35200,60060,19635,990, 0,6144,101376,241472,123255,12870,132,0,13312, 282880,906048,673816,121550,3861] |