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| n | a(n) |
|---|---|
| 1 | 324 |
| 2 | 9216 |
| 3 | 11664 |
| 4 | 24336 |
| 5 | 57600 |
| 6 | 147456 |
| 7 | 331776 |
| 8 | 746496 |
| 9 | 1679616 |
| 10 | 3873024 |
| 11 | 8856576 |
| 12 | 20358144 |
| 13 | 46457856 |
| 14 | 106502400 |
| 15 | 243360000 |
| 16 | 557715456 |
| 17 | 1275346944 |
| 18 | 2921186304 |
| 19 | 6682081536 |
| 20 | 15300700416 |
| 21 | 35007906816 |
| 22 | 80147874816 |
| 23 | 183403201536 |
[324,9216,11664,24336,57600,147456,331776,746496, 1679616,3873024,8856576,20358144,46457856, 106502400,243360000,557715456,1275346944, 2921186304,6682081536,15300700416,35007906816, 80147874816,183403201536] |