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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 38 |
| 2 | -238 |
| 3 | -136876 |
| 4 | -4000340 |
| 5 | 768888808 |
| 6 | 62860634104 |
| 7 | -5370921754384 |
| 8 | -944216132607088 |
| 9 | 36390910087921760 |
| 10 | 15676398398747125024 |
| 11 | -16391968526453252288 |
| 12 | -290667617977624530780992 |
| 13 | -10714513990411799725496704 |
| 14 | 5948586603063089600488296320 |
[1,38,-238,-136876,-4000340,768888808,62860634104, -5370921754384,-944216132607088,36390910087921760, 15676398398747125024,-16391968526453252288, -290667617977624530780992, -10714513990411799725496704, 5948586603063089600488296320] |