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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 216 |
| 4 | 9685 |
| 5 | 690129 |
| 6 | 71218224 |
| 7 | 10016312400 |
| 8 | 1839013713405 |
| 9 | 426795483514725 |
| 10 | 122096137679279577 |
| 11 | 42196285096882327872 |
| 12 | 17327812666870134181584 |
| 13 | 8338575020551966129589776 |
| 14 | 4647348123388957546230426120 |
| 15 | 2969504710005383652330487580832 |
[1,1,9,216,9685,690129,71218224,10016312400, 1839013713405,426795483514725,122096137679279577, 42196285096882327872,17327812666870134181584, 8338575020551966129589776, 4647348123388957546230426120, 2969504710005383652330487580832] |