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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 78 |
| 4 | 462 |
| 5 | 304 |
| 6 | 97794 |
| 7 | 12219684 |
| 8 | 1002070158 |
| 9 | 66418851994 |
| 10 | 3938900557370 |
| 11 | 220498154150976 |
| 12 | 11989843683775758 |
| 13 | 642848798388016272 |
| 14 | 34242542748164015936 |
| 15 | 1818689366369650176972 |
| 16 | 96473554444953414847032 |
[1,8,78,462,304,97794,12219684,1002070158, 66418851994,3938900557370,220498154150976, 11989843683775758,642848798388016272, 34242542748164015936,1818689366369650176972, 96473554444953414847032] |