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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 0 |
| 3 | -10 |
| 4 | 15 |
| 5 | 25 |
| 6 | 30 |
| 7 | 475 |
| 8 | 450 |
| 9 | 125 |
| 10 | 6000 |
| 11 | 8500 |
| 12 | 6250 |
| 13 | 5000 |
| 14 | 1250 |
| 15 | 96000 |
| 16 | 146250 |
| 17 | 189375 |
| 18 | 159375 |
| 19 | 65625 |
| 20 | 9375 |
| 21 | 180000 |
| 22 | 5355000 |
| 23 | 8881250 |
| 24 | 5578125 |
| 25 | 2515625 |
| 26 | 721875 |
| 27 | 78125 |
| 28 | 44100000 |
| 29 | 254700000 |
| 30 | 341775000 |
[1,2,0,-10,15,25,30,475,450,125,6000,8500,6250, 5000,1250,96000,146250,189375,159375,65625,9375, 180000,5355000,8881250,5578125,2515625,721875, 78125,44100000,254700000,341775000] |