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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 324 |
| 3 | 4962 |
| 4 | 68790 |
| 5 | 903332 |
| 6 | 11451686 |
| 7 | 141595454 |
| 8 | 1718447506 |
| 9 | 20556781248 |
| 10 | 243096369158 |
| 11 | 2847922372290 |
| 12 | 33104931317106 |
| 13 | 382296017735388 |
| 14 | 4389980739706374 |
| 15 | 50166156571004678 |
| 16 | 570836263990509842 |
[16,324,4962,68790,903332,11451686,141595454, 1718447506,20556781248,243096369158,2847922372290, 33104931317106,382296017735388,4389980739706374, 50166156571004678,570836263990509842] |