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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 216 |
| 3 | 3276 |
| 4 | 41762 |
| 5 | 575754 |
| 6 | 7960069 |
| 7 | 109611795 |
| 8 | 1511726778 |
| 9 | 20851649928 |
| 10 | 287587925275 |
| 11 | 3966669463101 |
| 12 | 54712728879235 |
| 13 | 754657175634132 |
| 14 | 10409064835821411 |
| 15 | 143573509709029089 |
| 16 | 1980327271124061504 |
[3,216,3276,41762,575754,7960069,109611795, 1511726778,20851649928,287587925275,3966669463101, 54712728879235,754657175634132,10409064835821411, 143573509709029089,1980327271124061504] |