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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 312 |
| 3 | 6664 |
| 4 | 67718 |
| 5 | 1051216 |
| 6 | 17686598 |
| 7 | 265341016 |
| 8 | 3829830598 |
| 9 | 58936793732 |
| 10 | 903190534810 |
| 11 | 13541666159416 |
| 12 | 204173378654170 |
| 13 | 3101530941597892 |
| 14 | 46929309853930974 |
| 15 | 708692945714600096 |
| 16 | 10722849759496524134 |
[16,312,6664,67718,1051216,17686598,265341016, 3829830598,58936793732,903190534810, 13541666159416,204173378654170,3101530941597892, 46929309853930974,708692945714600096, 10722849759496524134] |