The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 24 |
| 3 | 216 |
| 4 | 2376 |
| 5 | 381672 |
| 6 | 5163480 |
| 7 | 1010595960 |
| 8 | 14467313448 |
| 9 | 3059511345864 |
| 10 | 9938978525015640 |
| 11 | 148764065249108232 |
| 12 | 510526106263606993560 |
| 13 | 117943982401534505983800 |
| 14 | 1799331452450089752726504 |
| 15 | 421426396352475869646014856 |
| 16 | 1530747894615220749248821030680 |
[8,24,216,2376,381672,5163480,1010595960, 14467313448,3059511345864,9938978525015640, 148764065249108232,510526106263606993560, 117943982401534505983800, 1799331452450089752726504, 421426396352475869646014856, 1530747894615220749248821030680] |