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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 58 |
| 4 | 926 |
| 5 | 36676 |
| 6 | 4001456 |
| 7 | 1278335749 |
| 8 | 1245977301709 |
| 9 | 3807318836923015 |
| 10 | 37227045721617373564 |
| 11 | 1184237723914680499656080 |
[2,8,58,926,36676,4001456,1278335749, 1245977301709,3807318836923015, 37227045721617373564,1184237723914680499656080] |