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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 0 |
| 4 | 12 |
| 5 | 36 |
| 6 | 0 |
| 7 | 36 |
| 8 | 168 |
| 9 | 240 |
| 10 | 0 |
| 11 | 96 |
| 12 | 696 |
| 13 | 1584 |
| 14 | 1344 |
| 15 | 0 |
| 16 | 240 |
| 17 | 2664 |
| 18 | 9720 |
| 19 | 12960 |
| 20 | 6912 |
| 21 | 0 |
| 22 | 576 |
| 23 | 9720 |
| 24 | 54936 |
| 25 | 118584 |
| 26 | 98496 |
| 27 | 33792 |
| 28 | 0 |
| 29 | 1344 |
| 30 | 34344 |
| 31 | 299088 |
| 32 | 1004184 |
| 33 | 1347192 |
| 34 | 715392 |
| 35 | 159744 |
| 36 | 0 |
| 37 | 3072 |
| 38 | 118584 |
| 39 | 1585800 |
| 40 | 8250912 |
| 41 | 17194680 |
| 42 | 14644152 |
| 43 | 5038848 |
[0,3,0,12,36,0,36,168,240,0,96,696,1584,1344,0, 240,2664,9720,12960,6912,0,576,9720,54936,118584, 98496,33792,0,1344,34344,299088,1004184,1347192, 715392,159744,0,3072,118584,1585800,8250912, 17194680,14644152,5038848] |