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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 16 |
| 3 | 241 |
| 4 | 11227 |
| 5 | 1507355 |
| 6 | 567046841 |
| 7 | 600838995529 |
| 8 | 1782395103048207 |
| 9 | 14875073639322545780 |
| 10 | 349568074576274459361253 |
| 11 | 23097327995486146831078764702 |
| 12 | 4291548218733300058236161251915163 |
[2,16,241,11227,1507355,567046841,600838995529, 1782395103048207,14875073639322545780, 349568074576274459361253, 23097327995486146831078764702, 4291548218733300058236161251915163] |