| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 84 |
| 2 | 4256 |
| 3 | 169344 |
| 4 | 5843712 |
| 5 | 183794688 |
| 6 | 5421678592 |
| 7 | 152720375808 |
| 8 | 4157366140928 |
| 9 | 110282217357312 |
| 10 | 2867778350481408 |
| 11 | 73424436820180992 |
| 12 | 1857023919127527424 |
| 13 | 46511918954689069056 |
| 14 | 1155904251854380335104 |
[1,84,4256,169344,5843712,183794688,5421678592, 152720375808,4157366140928,110282217357312, 2867778350481408,73424436820180992, 1857023919127527424,46511918954689069056, 1155904251854380335104] |