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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 4 |
| 3 | 27 |
| 4 | 1913227 |
| 5 | 9821998 |
| 6 | 3588613885932 |
| 7 | 7625632704605 |
| 8 | 50859949338383 |
| 9 | 21029300554772499 |
| 10 | 97202454420912990 |
| 11 | 440023525444970228 |
| 12 | 783944985766933369 |
| 13 | 1277151495727998611 |
| 14 | 2283977463662240937 |
| 15 | 72927208535053310211 |
| 16 | 365439872472838714161 |
| 17 | 740751647624914930138 |
[3,4,27,1913227,9821998,3588613885932, 7625632704605,50859949338383,21029300554772499, 97202454420912990,440023525444970228, 783944985766933369,1277151495727998611, 2283977463662240937,72927208535053310211, 365439872472838714161,740751647624914930138] |