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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 32 |
| 2 | 657 |
| 3 | 11056 |
| 4 | 166481 |
| 5 | 2339904 |
| 6 | 31427089 |
| 7 | 409158992 |
| 8 | 5211577041 |
| 9 | 65347755616 |
| 10 | 810110258321 |
| 11 | 9959365988208 |
| 12 | 121687051820881 |
| 13 | 1480042546391168 |
| 14 | 17940274040148753 |
| 15 | 216912236044745104 |
| 16 | 2617684898381621201 |
| 17 | 31545404154807718560 |
| 18 | 379747317765849488785 |
[1,32,657,11056,166481,2339904,31427089,409158992, 5211577041,65347755616,810110258321,9959365988208, 121687051820881,1480042546391168, 17940274040148753,216912236044745104, 2617684898381621201,31545404154807718560, 379747317765849488785] |