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| n | a(n) |
|---|---|
| 1 | 768 |
| 2 | 43734 |
| 3 | 2490558 |
| 4 | 141832254 |
| 5 | 8077061502 |
| 6 | 459972403614 |
| 7 | 26194503047262 |
| 8 | 1491724252385406 |
| 9 | 84950695233299262 |
| 10 | 4837771196037723486 |
| 11 | 275501337345598245918 |
| 12 | 15689246928705157494846 |
| 13 | 893471050128160321852158 |
[768,43734,2490558,141832254,8077061502, 459972403614,26194503047262,1491724252385406, 84950695233299262,4837771196037723486, 275501337345598245918,15689246928705157494846, 893471050128160321852158] |