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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 2 |
| 4 | -4 |
| 5 | 1 |
| 6 | 12 |
| 7 | -28 |
| 8 | 11 |
| 9 | -1 |
| 10 | 144 |
| 11 | -360 |
| 12 | 182 |
| 13 | -26 |
| 14 | 1 |
| 15 | 4320 |
| 16 | -11088 |
| 17 | 5940 |
| 18 | -984 |
| 19 | 57 |
| 20 | -1 |
| 21 | 233280 |
| 22 | -616032 |
| 23 | 348768 |
| 24 | -64728 |
| 25 | 4506 |
| 26 | -120 |
| 27 | 1 |
| 28 | 29393280 |
| 29 | -78086592 |
| 30 | 44775936 |
| 31 | -8554608 |
| 32 | 636444 |
| 33 | -19740 |
| 34 | 247 |
| 35 | -1 |
| 36 | 7054387200 |
[1,-1,2,-4,1,12,-28,11,-1,144,-360,182,-26,1,4320, -11088,5940,-984,57,-1,233280,-616032,348768, -64728,4506,-120,1,29393280,-78086592,44775936, -8554608,636444,-19740,247,-1,7054387200] |