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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 17 |
| 2 | 272 |
| 3 | 4352 |
| 4 | 69632 |
| 5 | 1114112 |
| 6 | 17825792 |
| 7 | 285212672 |
| 8 | 4563402752 |
| 9 | 73014444032 |
| 10 | 1168231104512 |
| 11 | 18691697672192 |
| 12 | 299067162755072 |
| 13 | 4785074604081152 |
| 14 | 76561193665298432 |
| 15 | 1224979098644774912 |
| 16 | 19599665578316398592 |
[1,17,272,4352,69632,1114112,17825792,285212672, 4563402752,73014444032,1168231104512, 18691697672192,299067162755072,4785074604081152, 76561193665298432,1224979098644774912, 19599665578316398592] |