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| n | a(n) |
|---|---|
| 1 | 27 |
| 2 | 132 |
| 3 | 1336 |
| 4 | 37635 |
| 5 | 771084 |
| 6 | 17912392 |
| 7 | 481968171 |
| 8 | 12572589132 |
| 9 | 333224229896 |
| 10 | 8994193541379 |
| 11 | 241857613967412 |
| 12 | 6515666351143848 |
| 13 | 175918432063803627 |
| 14 | 4747650731553770292 |
| 15 | 128153708240382030872 |
| 16 | 3460143599773663664643 |
[27,132,1336,37635,771084,17912392,481968171, 12572589132,333224229896,8994193541379, 241857613967412,6515666351143848, 175918432063803627,4747650731553770292, 128153708240382030872,3460143599773663664643] |