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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 192 |
| 3 | 1632 |
| 4 | 14592 |
| 5 | 132980 |
| 6 | 1222708 |
| 7 | 11215820 |
| 8 | 102219940 |
| 9 | 933038584 |
| 10 | 8540079344 |
| 11 | 78067411340 |
| 12 | 713247261668 |
| 13 | 6518908174356 |
| 14 | 59590575250044 |
| 15 | 544659989843968 |
| 16 | 4977988468360184 |
| 17 | 45498912754793708 |
| 18 | 415866178060623508 |
[16,192,1632,14592,132980,1222708,11215820, 102219940,933038584,8540079344,78067411340, 713247261668,6518908174356,59590575250044, 544659989843968,4977988468360184, 45498912754793708,415866178060623508] |