| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 80 |
| 3 | 1677 |
| 4 | 21455 |
| 5 | 247187 |
| 6 | 3898804 |
| 7 | 43979526 |
| 8 | 602874070 |
| 9 | 8649395684 |
| 10 | 101952716878 |
| 11 | 1438937234148 |
| 12 | 19175029391887 |
| 13 | 237935384258519 |
| 14 | 3335405244297922 |
| 15 | 43049779553837333 |
| 16 | 556801688251633585 |
[8,80,1677,21455,247187,3898804,43979526, 602874070,8649395684,101952716878,1438937234148, 19175029391887,237935384258519,3335405244297922, 43049779553837333,556801688251633585] |