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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 12 |
| 3 | 111 |
| 4 | 1524 |
| 5 | 26463 |
| 6 | 551892 |
| 7 | 13428831 |
| 8 | 373435284 |
| 9 | 11682749343 |
| 10 | 406099317972 |
| 11 | 15527879299551 |
| 12 | 647709987649044 |
| 13 | 29269219898465823 |
| 14 | 1424381697080564052 |
| 15 | 74268532877694770271 |
| 16 | 4130589424345479558804 |
[3,12,111,1524,26463,551892,13428831,373435284, 11682749343,406099317972,15527879299551, 647709987649044,29269219898465823, 1424381697080564052,74268532877694770271, 4130589424345479558804] |