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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 244 |
| 3 | 3726 |
| 4 | 52120 |
| 5 | 773348 |
| 6 | 11181454 |
| 7 | 163361868 |
| 8 | 2378097084 |
| 9 | 34661572702 |
| 10 | 505010822224 |
| 11 | 7358779655656 |
| 12 | 107224919634686 |
| 13 | 1562394222954108 |
| 14 | 22765852658001192 |
| 15 | 331724751544038894 |
| 16 | 4833609504204441184 |
[16,244,3726,52120,773348,11181454,163361868, 2378097084,34661572702,505010822224,7358779655656, 107224919634686,1562394222954108, 22765852658001192,331724751544038894, 4833609504204441184] |