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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 88 |
| 3 | 1088 |
| 4 | 14296 |
| 5 | 195008 |
| 6 | 2728384 |
| 7 | 38879744 |
| 8 | 561787864 |
| 9 | 8206324928 |
| 10 | 120929313088 |
| 11 | 1794924383744 |
| 12 | 26802975999424 |
| 13 | 402298219288064 |
| 14 | 6064992788397568 |
| 15 | 91786654611673088 |
| 16 | 1393772628452578264 |
| 17 | 21227503080738294464 |
| 18 | 324160111169327247424 |
[1,8,88,1088,14296,195008,2728384,38879744, 561787864,8206324928,120929313088,1794924383744, 26802975999424,402298219288064,6064992788397568, 91786654611673088,1393772628452578264, 21227503080738294464,324160111169327247424] |