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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 0 |
| 3 | -3 |
| 4 | 5 |
| 5 | 0 |
| 6 | 16 |
| 7 | -15 |
| 8 | 25 |
| 9 | 0 |
| 10 | 2814 |
| 11 | 80 |
| 12 | -75 |
| 13 | 125 |
| 14 | 0 |
| 15 | -1092180 |
| 16 | 14070 |
| 17 | 400 |
| 18 | -375 |
| 19 | 625 |
| 20 | 0 |
| 21 | -3603928080 |
| 22 | -5460900 |
| 23 | 70350 |
| 24 | 2000 |
| 25 | -1875 |
| 26 | 3125 |
| 27 | 0 |
| 28 | 58978973128440 |
| 29 | -18019640400 |
| 30 | -27304500 |
| 31 | 351750 |
| 32 | 10000 |
| 33 | -9375 |
| 34 | 15625 |
| 35 | 0 |
| 36 | 5974833380453777520 |
[0,1,0,-3,5,0,16,-15,25,0,2814,80,-75,125,0, -1092180,14070,400,-375,625,0,-3603928080, -5460900,70350,2000,-1875,3125,0,58978973128440, -18019640400,-27304500,351750,10000,-9375,15625,0, 5974833380453777520] |