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| n | a(n) |
|---|---|
| 0 | -264 |
| 1 | -3456 |
| 2 | 0 |
| 3 | -23520 |
| 4 | 12600 |
| 5 | -88704 |
| 6 | 68544 |
| 7 | -250560 |
| 8 | 225720 |
| 9 | -591360 |
| 10 | 576576 |
| 11 | -1231776 |
| 12 | 1255800 |
| 13 | -2338560 |
| 14 | 2448000 |
| 15 | -4132224 |
| 16 | 4395384 |
| 17 | -6894720 |
| 18 | 7405440 |
| 19 | -10977120 |
| 20 | 11858616 |
| 21 | -16807296 |
| 22 | 18216000 |
| 23 | -24897600 |
| 24 | 27027000 |
| 25 | -35852544 |
| 26 | 38937024 |
| 27 | -50376480 |
| 28 | 54695160 |
| 29 | -69281280 |
| 30 | 75161856 |
[-264,-3456,0,-23520,12600,-88704,68544,-250560, 225720,-591360,576576,-1231776,1255800,-2338560, 2448000,-4132224,4395384,-6894720,7405440, -10977120,11858616,-16807296,18216000,-24897600, 27027000,-35852544,38937024,-50376480,54695160, -69281280,75161856] |