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| n | a(n) |
|---|---|
| 1 | 14 |
| 2 | 324 |
| 3 | 688 |
| 4 | 2564 |
| 5 | 13156 |
| 6 | 73012 |
| 7 | 409728 |
| 8 | 2315520 |
| 9 | 13124196 |
| 10 | 74374784 |
| 11 | 421693088 |
| 12 | 2391893604 |
| 13 | 13567346336 |
| 14 | 76957333264 |
| 15 | 436531122532 |
| 16 | 2476214431728 |
| 17 | 14046271820336 |
| 18 | 79677222082004 |
| 19 | 451968054503712 |
| 20 | 2563784735001168 |
[14,324,688,2564,13156,73012,409728,2315520, 13124196,74374784,421693088,2391893604, 13567346336,76957333264,436531122532, 2476214431728,14046271820336,79677222082004, 451968054503712,2563784735001168] |