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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 1 |
| 9 | 12504636144000 |
| 10 | 2532230252503738514963235000 |
| 11 | 691778216746194304091147388331566881040000 |
| 12 | 358920655858354115406831875940612514848040679965214568750 |
[0,0,0,0,0,0,0,1,12504636144000, 2532230252503738514963235000, 691778216746194304091147388331566881040000, 35892065585835411540683187594061251484804067996521\ 4568750] |