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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 41 |
| 4 | 1302 |
| 5 | 96831 |
| 6 | 16932816 |
| 7 | 6978332618 |
| 8 | 6787438272198 |
| 9 | 15595829208171337 |
| 10 | 84713253582265127190 |
| 11 | 1088296274542436098185362 |
| 12 | 33079232010276428576508643620 |
| 13 | 2379573338713223879592059518246838 |
[1,3,41,1302,96831,16932816,6978332618, 6787438272198,15595829208171337, 84713253582265127190,1088296274542436098185362, 33079232010276428576508643620, 2379573338713223879592059518246838] |