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| n | a(n) |
|---|---|
| 1 | 3456 |
| 2 | 186304 |
| 3 | 10046784 |
| 4 | 541815424 |
| 5 | 29219848960 |
| 6 | 1575813859456 |
| 7 | 84982973330688 |
| 8 | 4583095819732736 |
| 9 | 247164420634563840 |
| 10 | 13329472755050099712 |
| 11 | 718852832815666617344 |
| 12 | 38767429496362104931840 |
| 13 | 2090711090157985348366336 |
[3456,186304,10046784,541815424,29219848960, 1575813859456,84982973330688,4583095819732736, 247164420634563840,13329472755050099712, 718852832815666617344,38767429496362104931840, 2090711090157985348366336] |