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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 22 |
| 2 | -238 |
| 3 | -37004 |
| 4 | -298580 |
| 5 | 100298792 |
| 6 | 3284447224 |
| 7 | -362236528016 |
| 8 | -24568799886448 |
| 9 | 1551764588318560 |
| 10 | 193786882605147424 |
| 11 | -6940428910346759872 |
| 12 | -1691744857677709558592 |
| 13 | 22913489210334717241984 |
| 14 | 16382813996790345696268160 |
| 15 | 128812358991324283435925248 |
[1,22,-238,-37004,-298580,100298792,3284447224, -362236528016,-24568799886448,1551764588318560, 193786882605147424,-6940428910346759872, -1691744857677709558592,22913489210334717241984, 16382813996790345696268160, 128812358991324283435925248] |